DOOMHammer 40k

Author's Notes: Still thinking about how things will change from the last writing of this story. Send help.

Eye of Terror, Time Unknown

"..." The Doom Marine sighed as he felt as if the demon onslaught had lasted for an entire week straight. He soon saw the demons regrouping for another charge as the Doom Marine readied his shotgun and Hellshot once more in preparation of the incoming horde. However, they soon backed away as a massive warp portal opened up before the four space marines were spat out followed by the Chaos Gods.

"Damn you Doom Slayer! How did you know these four would survive!?" Nurgle asked as he threw the unconscious but alive, Death Guard marine at his feet, with the other three space marines following suit. His hud quickly scanned the four of them before being marked as non-chaotic or "non-Hell" beings.

"I assume you made them honor the deal as well, Khorne?" The Doom Marine asked as the blood god smirked as even though he was a god of war, he was also a god of honor.

"Thank you for your time, dickwads." The Doom Marine proceeded to flip them off due to them sending a demon horde at him previously before pulling the four marines into the thunderhawk. The loading door closed before a warp portal opened and the craft flew through it before closing. The Chaos Gods however were intrigued at the somewhat weird way some of the demon corpses were arranged before realizing that it was a short message.

Fuck you.

Terra, Imperial Palace

"He's returned!" A Son of Horus loyalist yelled as the nose of the thunderhawk appeared out of a warp portal. The craft soon landed and the loading door opened, revealing the Doom Marine and the knocked out space marines. The four unconscious marines were soon lifted out by their battle brothers while the Doom Marine walked out with a cloud of chaos energy that surrounded him for a bit before dissipating.

"Sir, if I may ask, what exactly happened?" Saul asked as the Doom Marine remained silent but motioned for Saul to follow him. Saul began to fear the worst as the Doom Marine led him straight to a side entrance of the golden palace and even without actually knowing the inside, the Doom Marine was able to walk straight to the throne room of the Emperor. Saul proceeded to immediately take a knee in front of the god Emperor while the Doom Marine stayed standing.

"I assume you require something of me?" The Emperor asked as he returned the glare of the Doom Marine. The Doom Marine nodded before his message prompt appeared.

"I need a ship. One big enough to house my legion and possibly more." The Doom Marine's prompt read simply. The Emperor narrowed his eyes as the Doom Marine seemed to be asking him for more and more things with what seemed like seconds passing by.

"I won't provide you a ship, as we have none available. However, the whispers of the warp have told me that a member of your legion knows of the perfect ship for you to steal from those traitorous bastards. But, they also said that the legion to which this member belongs is one that is not what it seems." The Emperor stated, confusing the Doom Marine who believed the info.

Loading Bay, Time Unknown

"At attention!" Saul barked as the group of marines stood up immediately to face the second-in-command and the Doom Marine, whose prompt showed up the moment that the legionaries had organized themselves.

"Who among you have experience with the ships used by the traitors? Step away if you do not." The prompt read as everyone stepped away. Except for the Alpha Legion marines. The Doom Marine walked in front of them and as if they were mind-readers, one of the legionary loyalists spoke.

"There are two ships in use by our primarch...es." Saul was confused and approached the legionary.

"What do you mean primarchs? There is only Alpharius leading the Alpha Legion." The captain spoke as the marine shook his head.

"It's a long story, one of which we can tell when we steal one of their ships. But for now I ask for permission to cut to the chase." The marine responded, still confusing the other marines at how their legion was renowned for it's too serious attitude.

"Granted." Saul answered as the alpha legion marine pulled out a small holographic projector before throwing it on the floor. It quickly lit up as a star map appeared with a fleet of ships highlighted nearing Pluto.

"My god, he plans to spearhead Horus' attack." Saul immediately figured out why such a fleet would be present near Pluto. He quickly turned to the legionaries.

"We need to find this ship you wish to steal and we need to stop them at all costs." The second-in-command started as they all turned to yelling as the Doom Marine backhanded an Imperial Fist out of his way. He soon motioned for them to follow as he had a feeling that the Doom Marine was furthering dissension between them and the Imperial Fists.

"Where are we going sir?" Saul asked as he watched as the mix match of loyalists stowed themselves aboard the ship.

"Pluto." The Doom Marine responded simply as he smashed the door button the moment the last marine of their legion was on board.

Pluto, Time Unknown

"To battle brothers!" The intercom rang throughout the ship as the Imperial Fists began to load themselves into drop pods while the Argent Angels watched from behind some crates.

"I will descend to the surface, I want the World Eaters and a member of the Alpha Legion with me. The rest of you will follow captain Saul to capture the ship." The Doom Marine stated as he grabbed a crate, and with the strength that impressed even the space marines, threw it so that a group of Imperial Fists were stopped from entering their drop pod.

"To their thunderhawks!" The captain yelled. In the time they had took to reach Pluto, which was a fairly short amount, they had devised a plan that would separate the angels into boarding groups, so that they could infiltrate the massive ship with a multi-headed attack.

Meanwhile, the Doom Marine and his group had landed on Pluto's surface. The Alpha Legionaries had informed him of how Pluto was a surveillance station meant to monitor the solar system surrounding Earth, thus leading them to realize that in combination of the Alpha Legion's tactics of stealth and quick elimination, it would only make sense that they'd attack Pluto first. Not to mention, the Imperial Fists must have figured that out too the moment they set a course for Pluto.

"Urryyaaa!" The World Eaters yelled as they charged forward to the moon base, with the Alpha Legionary and the Doom Marine following. Normally he would join them, but he didn't feel like it for some reason. They soon entered the main base as they saw Imperial Fists dueling it out with Alpha legionaries, both of which didn't seem like they were getting the upper hand. They saw an Imperial Fist slam his power sword through a legionary, but this victory was short lived as he was decapitated by another legionary.

"Forward!" The World Eaters yelled as they raised their weapons and proceeded to murder as many Alpha Legionaries as they could. The Imperial Fists were a bit surprised to see the loyalists of one of the traitor legions, but it was welcomed help nonetheless. What caught the Doom Marine's eye, along with the Alpha legion loyalist that had come with him, was the fight commencing between two massive armored marines.

"We need to stop them!" The Alpha Legionary urged the Doom Marine as he had noticed how the two had stopped fighting, with the massive alpha legion armored marine talking to the imperial fist.

"Please Rogal, I don't do this for Horus! I have seen what happens if the Emperor succeeds, which leads us only to destruction! I urge you, join us and we can achieve true victory without the destruction of humanity!" Alpharius, primarch of the Alpha Legion, urged Rogal Dorn, primarch of the Imperial Fists, to join them.

"No." The primarch responded plainly before he rose up and raised his massive chainsword in front of him. Alpharius sighed as he hesitantly held his spear up as well.

"Then so be it!" Alpharius yelled as he overpowered Dorn quickly. The primarch then aimed the spear at the primarchs' chest as he was about to lay the final blow. Archamus, an Imperial Fists captain, smirked as he used his dying breath to reach over and grab the spear, however, this was cut short as the Alpha Legionary grabbed his hand before pulling him to the ground. At the same time, the Doom Marine shoulder charged Alpharius off of Dorn just in time to for the primarch's chainsword to miss. Had it hit him however, Alpharius' hands would have been severed from his wrists.

"What the!?" Alpharius asked as he saw how the World Eaters had somehow curbed their rage and managed to instead knockout the fists within the base.

"No one must know what transpired within this place." The alpha legionary said as he slammed his foot into the head of Archamus.

"Sir, please use me as your body decoy one last time, my memories will tell you of what you must know." The alpha legionary said as he stood before Alpharius. The Doom Marine and even Rogal, who was on the verge of losing consciousness, watched as Alpharius wiped some of his blood from his armor before letting it drip into the mouth of the alpha legion member.

"I understand now. I am Alpharius." Alpharius said as the legionary nodded sadly before Alpharius used his spear to decapitate the legionary. He then proceeded to drop the corpse onto Rogal just as he lost consciousness, unable to comprehend the events that had transpired before him. Alpharius then turned to the Doom Marine as he somehow had a somewhat sad expression on his face, despite most of the Alpha legion being known for not having any emotions.

"You, Doom Slayer, I don't know what made my own son trust you, but I will follow his wishes for his and your sacrifice." The primarch said as he returned to his usual stoic expression before handing him a pendant that had the symbol of the alpha legion symbol with a hydra surrounding it.

"This is a token of my recognition. Use it when you need to." The primarch said as he walked away. As uneventful as this was, the Doom Marine was at least glad that something had come out of the alpha legionary's plan. He had gained the favor of a traitor legion. Although, with the Alpha legion, you never know.

Space Outside of Pluto, Same Time

"Route those marines, get them out of that ship!" A man, identical to how Alpharius looked, commanded from the bridge. However, this all stopped as a hologram of the actual Alpharius appeared before him.

"Brother, leave them, we are retreating." Alpharius said as his brother, Omegon, nodded without any resistance. In the other ship, named Alpha, the remaining Alpha Legionaries were finally dead as the Argent Angels claimed the ship as their own. The Doom Marine and the World Eaters soon boarded their thunderhawk before flying to the now captured ship. After boarding, his scans had come up with nothing as far as chaotic or demonic presence was concerned, thus meaning that the Gloriana-class ship was theirs.

"Nice…" The Doom Marine's prompt read as he looked around in the bridge at the controls and such. Not to mention, with Saul being his second-in-command, had already began designating marines to positions. The only problem with this ship was that it was too large for just them to run, so they would have to figure out how to manage.

"Sir, Horus has begun his attack!" A legionary yelled as Saul went wide-eyed.

"What!? How can he be here already!?" The captain yelled as multiple ships began to appear near Terra.

"All of you stay here and defend the ship!" The Doom Marine's prompt read as he ran towards the hangars. He grabbed two jump packs and held them before kicking the button to open an airlock before being dragged outside. The Doom Marine soon activated the jump packs as he quickly flew forward and towards the massive chaos-ridden ship. However, when he was within a few yards of it, he soon slammed against something solid. He pressed his feet against what he thought to be some sort of shield before realizing that there was some sort of shield. And because the Doom Marine does not give a shit about anything, he hit it. And he it. Until his fist began to gain red sparks as if his suit were being filled with argent energy.

"What the fuck!?" Horus asked as he saw the void shield surrounding his ship literally shatter. Soon enough, the radio chatter acted up as reports of Imperial forces teleporting into his ship.

A Few Minutes Later (because I don't want to write about Sanguinius dying when he has no relevance to this story for now)

"What the hell!?" Horus asked once more as he stood over the body of the slain Sanguinius, before seeing something greenish flying towards one of the windows of the bridge, not to mention with two jump packs in his hands. Soon enough, the void shields were back online just as the Doom Marine slammed through the window and let go of one of the jump packs so that it flew like a missile at one of the consoles. He then aimed the other one as it flew at Horus who batted it out of the way before the Doom Marine appeared behind it with his chainsaw aimed straight forward. However, the Warmaster took his chainsaw to the shoulder before using his clawed hand to wrench the Doom Marine off of him and threw him away.

"Die whoever you may be!" Horus growled as he aimed his talons at the Doom Marine before a storm of bolter rounds flew at the Doom Marine who rolled out of the way just in time to avoid the attack. He was prepared to end the fight quickly as he held his double-barreled shotgun. And as if a child's fight, the Doom Marine emptied the two rounds so as to distract the warmaster before landing a hard left hook into his jaw, sending him falling back. That wasn't the end unfortunately as the Doom Marine began to send a storm of armored punches into Horus' unprotected face and every time the warmaster tried to get up, the Doom Marine merely kicked or swatted away his attacks and kept up his brutal combo until Horus shed a single tear.

"Why? Why would you even come after me? Who are you!?" Horus asked as his bloodied face could barely make the sentence coherent for the Doom Marine to understand.

"Because fuck you." The Doom Marine's prompt read as the warmaster smirked sadly despite his bruised beyond all repair face. The Doom Marine soon grabbed his chainsaw and revved it as the warmaster simply laid there, somehow accepting defeat. It was then that the Doom Marine found that a scan had revealed Horus' demonic presence level was at 0%.

"Any last words?" The Doom Marine as he finally felt sympathy at how he was merely a pawn, much like he was for doing what had been asked of him by some robot fuck that he couldn't remember the name of. The warmaster began to cry, and the Doom Marine knew that these were true tears as he held his chainsaw, it's revving signifying that death had come for the bald man.

"If you're in service to the Emperor… tell him I'm sorry. I'm sorry for being so weak to fall prey to the very enemies I had once hated with no remorse. So please, kill me that I may never commit such atrocities ever again." The warmaster begged as the Doom Marine hesitated. He knew of how even though he was dead physically, that wouldn't stop those four fucks in the warp from possessing him again, so he broke an oath as he drew what looked like his symbol using the warmaster's blood onto Horus' forehead.

"Thank you, whoever you are." Horus smiled as the Doom Marine used his strength to quickly sever Horus' head in half. The Doom Marine immediately turned his attention to the enemy ships who must have felt their leaders' death, and were attempting to escape. He then set to the controls and as if something was guiding him, he found the one controlling most of the guns aboard the late warmaster's ship.

Aboard the ships of the chaos space marine fleet, the traitors would never notice until it was too late that the guns of The Vengeful Spirit were now turning to aim right at them. He soon began a long sprint to the ship's main engines as he placed an explosive charge before quickly leaving the ship via airlock. Not too long after, the loyalists began cheering as they saw the Vengeful Spirit blow itself apart starting from the back before the explosion made its way to the front.

Terra, Only a Few Hours After Horus' Death

A few minutes after Horus' death, the Emperor had felt a massive disturbance in the warp as he felt Horus' existence disappear entirely. He shed a single tear before his trusted advisor, Malcador the Sigillite, appeared before him.

"The Argent Angels have arrived m'lord." Malcador informed him as the doors opened to let the Doom Marine and Saul into the throne room. Behind them, were also the full roster of the Argent Angels, who all received dirty looks as they still possessed the colors of the traitor legions.

"Doom Marine, I assume Sanguinius killed my son?" The Emperor asked as the Doom Marine's head lowered a bit as he placed a projector out and then replayed the scene of him arriving and quickly defeating Horus. The Emperor's expression saddened further as he heard what his son had admitted in the final moments of his life. However, he knew he had to move on quickly, for mankind still needed to be led.

"I assume the capturing of the ship went successful?" The Doom Marine nodded. The Emperor sighed as he continued.

"Doom Slayer, I have a special task for you." The Emperor stated as multiple red-robed people began to plug things into the Emperor once more.

"I know that with the end of this… heresy, has come the enlightenment to everyone that mankind can fall to Chaos, and with this, we're bound to attract races wishing to further conquer us." The Doom Marine nodded as he had learned of how humanity had just suffered the same as the Eldar.

"However, I must remain on Terra to provide light to the astronomican, that with its light, mankind will still be guided by its light for space travel." The Argent Angel marines were surprised at the Emperor's sudden statement.

"So I ask of you, you and your Argent Angels whom I now declare an autonomous astartes legion, to help the Imperium once more."

"With what?"

"To explore the universe along with fighting Chaos. And should you aid other species, that of which I cannot hold you back from doing, find a way to extend my lifeforce, for without me, the Imperium is literally doomed." The Emperor stated as the Doom Marine nodded slowly. He knew that the Emperor was a man with good intentions and was incorruptible, but to not prepare for such a crucial event was exceedingly stupid.

"Then make haste, let the forces of good guide you, you who are called the Doom Slayer." The Emperor said as the Doom Marine nodded in response before he and his Argent Angels walked off and out of the imperial palace before boarding their newly symbolled thunderhawks, with the symbol being the star of Chaos that was scratched and covered by the Argent symbol that adorned the Doom Marine's helmet. They soon flew off to their new ship and the combined forces of the space marines watched in awe as the legion that singlehandedly stopped Horus from causing major damage disappeared.

Location Unknown, Time Unknown

The Argent Angels, although hailed as the "legion" responsible for slaying Horus and stopping the death of Rogal Dorn on Pluto, were in need of training and practice. For the newly set standard was to become an unyielding force of destructive yet controlled power like the Doom Marine. They were taken as loyalists from the traitor legions of the Horus Heresy, and were given a new chance and purpose in the Imperium; to slay all forces of Chaos, evil, and what the Doom Marine described as Hell.

"Is the Doom Marine here?" An Argent Angel of the Emperor's Children asked as he entered the command center of the newly named "Harbinger of Doom". A massive, Gloriana-class battleship that was once known as the Alpha, which also was the flagship of the Alpha Legion's "face" primarch. However, he was surprised to see the four marines that disappeared with the Doom Marine for whatever reason, along with the second-in-command, Saul Tarvitz, and the Doom Marine himself.

"What is it?" Saul addressed the marine as the others merely continued their conversations, symbolizing that there was nothing to hide.

"Well, me and my fellow battle brothers, including some of those from the other legions, would like to request that our priorities shift to finding an apothecary to join our ranks. We have no way of providing medical attention in combat, managing our gene-seed purity so as to not gain mutations that could be fatal like the Thousand Sons, and most importantly, we don't want to lose that same gene-seed to aid in the creation of more Chaos Space Marines." The Doom Marine had heard rumors about this. He had heard stories and rumors from the Argent Angels of how Chaos Space Marines were capturing women to be used as breeding tools, mere breeding tools, for the chaos marines. If there was anything that got the Doom Marine angrier than now, it was pure evil like this. However, his pondering was cut short as an urgent message appeared in his hud.

"Would you like to activate central processing?" The prompt read as the Doom Marine accepted. Soon enough, his eyes widened with a bit of happiness as he saw the AI he had made a backup copy of, named Vega, begin to load into his suit.

"Hello sir. I assume you destroyed my former housing?" Vega asked as the Doom Marine nodded.

"Very good, anyways, I hate to intrude, but I must request that you plug me into the ship. I have sifted through what this suit has captured via a camera within your helmet, and will provide a hand by taking control of this ship." Vega started as the Doom Marine commended the AI for being so efficient and hardworking. He saw a few loading bars appear before a prompt appeared that when accepted, ejected the same chip he had saved Vega to.

"That is merely a copy of my AI, I am still able to control it as I am the main program, so worry not about it being corrupted." Vega assured him as the Doom Marine plugged the chip into one of the control panels in the ship's command center.

"Ah, I have already found a prominent target. Head north for a bit and we will be approaching a Chaos ridden world. My sensors detect that the world is chaos-infected, but to whose allegiance I cannot tell as all four chaos god traits are present at the moment." Vega's voice said throughout the bridge's intercom. Saul proceeded to fall out of his chair as he didn't know what the voice was to which he could have sworn he heard the Doom Marine snicker with his real voice when he did fall. Turning to the marine that was just about to leave the bridge, the Doom Marine tapped his shoulder before his prompt appeared.

"Prepare for landing, equip for a search and capture alive mission, we'll get you your apothecary." The marine saluted and nodded before running off to the barracks to tell the others about the new orders.

"You mean to capture and somehow recruit a chaos space marine, let alone an apothecary?" The space marine who had faced Nurgle's challenge, asked.

"The mistake that the Emperor made before was that all traitors must be put to death on the spot. With us being an autonomic legion, we are free to experiment with the fact that maybe we can sway a traitor back onto the good path." The Doom Marine's prompt read as the loyalist Death Guard marine nodded in understanding. This soon faded as another prompt came up.

"If it doesn't work, we can just kill them anyways." The marine proceeded then facepalmed before the Doom Marine left the bridge.

'Planetary report.' The Doom Marine requested in his thoughts as he sat down and looked a wall. His helmet soon projected a star map before zooming in on a planet named Vildnar IV.

"Vildnar IV was a planet that unfortunately was captured by the Chaos Space Marine legions during the ongoing Great Scouring. Due to this, it has since moved closer to the Eye of Terror, suggesting that many experiments or vital facilities are stationed there." Vega stated as the Doom Marine nodded before the projector shut off.

"How do you wish to proceed sir?"

'Find a strategic landing spot for us to fly in with the thunderhawks and find us a good cleansing strategy. We need to find an apothecary so if you discover anything while surveying the planet simply tell us.' The Doom Marine requested before heading towards the loading bay of the ship. Many would see this first planetary siege against the Chaos legions as a suicide mission, but the Argent Angels had already seen enough from their playing of parts in the Horus Heresy that there is no such thing as a suicide mission. Only failure. The legion soon made haste towards the planet's surface with their thunderhawks as they all were silent as to how the events had transpired so quickly.

Vildnar IV itself was once a prosperus world newly claimed by the Imperium in the beginning, but during the Horus Heresy, a civil war had broken out with the results being that those that were dedicated to Chaos, had won. The men were executed or captured as slaves, whilst the women awaited their eternal slavery as simple babymakers.

On yet another day of pure suffering, a line of women captured during another hunt for hiding survivors were mocked and abused as they were led by a group of Emperor's Children traitor marines. This was even worse, as the Emperor's Children began to further indulge in the sins of what Slaanesh symbolized. However, this was cut short as they were surprised and confused at the appearance of the thunderhawks of their loyalist brethren. Despite this, they didn't recognize the colors and simply laid fire at the thunderhawks, which didn't even land before a group of Argent Angels jumped out and laid waste to the unprepared Emperor's Children as they thought they would be easy kills. The slaves rescued were simply led onto the thunderhawk before being unshackled and overseen by the Argent Angel that had faced Slaanesh's challenge before being flown back to the awaiting Harbinger of Doom, whose massive size was visible even in space from the planet's surface.

"There, that must be the facility." The leader of the current group, the Angel that had faced Tzeentch's challenge, said. Following their group leader, the Argent Angels immediately laid siege upon an Emperor's Children facility with horrifying gracefulness as each shot they took or swing they made was carefully planned to not damage anything within the facility. The Argent Angel leader looked through a window only to confirm the Doom Marine's grave worries. Inside, was captured women slaves made to birth possible Chaos space marines. Meanwhile, the Doom Marine also saw it as he had streamed their facility siege to determine what was to be taken and what was to be destroyed.

"How... shall we proceed sir?" He asked over his mic.

"He has said to eliminate them, as they deserve a peaceful death for the suffering they've endured." Vega responded. With heavy hearts, the Argent Angels aimed their weapons at the slaves through the window before emptying their magazines into them; the screams of the women being quickly cut short. But one sight caught the group leader's eye. With disgust, he saw a baby claw its way out of one of the slave's stomachs. With pure rage, he grabbed the newborn before throwing it to the ground and stomped it, turning the baby into a pile of meat and blood. He then aimed his bolter and emptied another magazine into the slaves, this time aiming for their stomachs to kill the children that might still be alive.

"Fucking disgusting." The leader said as the group proceeded further into the facility.

Meanwhile, Location Unknown

The Doom Marine had received coordinates to another facility that was retrieved from the databases invaded by the other group. The very sight of the chaos-infested experiments disgusted him, as there was nothing but pure evil to see in those experiments, and with every file he had read, his rage only grew. He was alone this time as he approached a mountainside facility before climbing his way to what looked like a landing pad, suggesting the base was a former Imperium facility.

"An intruder!" He heard yelling as soon as he ripped open the sliding hangar doors. With frightening accuracy, the Doom Marine rip and tore through the chaos space marines belonging to the Emperor's Children with ease as usual.

Searching through the facility, the Doom Marine soon came across what his legion had requested. In a windowed room, a lone apothecary was treating the wounds of an enslaved woman so that she could be put back into slavery as soon as possible. What showed however, was that he was thorough and careful with his work, as if he actually acted with great care for the victim as any other chaos apothecary would never go to such lengths for a replaceable slave. He watched carefully as the Emperor's Children apothecary was so indulged in his work, that he never noticed the Doom Marine until he was finished. When he attempted to pull out his bolt pistol, the Doom Marine simply slapped the weapon out of his hand, and when he attempted to hit the Doom Marine with his Narthecium, the Doom Marine also slapped the fist out of his way before slamming his own fist into the apothecary's face, effectively knocking him out.

"Sir, I'd like to inform you from the data I've collected from this facility, that suggests an Iron Warriors held fortress on this planet as well." Vega stated as a minimap appeared within the Doom Marine's hud before a marker of the Iron Warriors' symbol appeared a bit farther away. And to his happiness, he spotted a thunderhawk near the landing pad. He then proceeded to pull and throw the chaos apothecary into the thunderhawk before walking in himself.

"Whu-!?" The apothecary tried to ask before having his face kicked by the Doom Marine, knocking him unconscious again. The Doom Marine proceeded to attach the heavy crates present in the craft to the unconscious apothecary, as they served to stop him from pulling himself into the pilot seat, effectively restraining him. The Doom Marine began his quick flight as he began to see the fortress come into view. He set the ship to auto-pilot, while Vega tied it to him so that when he came calling, it would immediately make its way back to him.

"Incoming!" He heard as he opened the loading door of the still flying thunderhawk before jumping out and slamming down onto an Iron Warriors marine who was at an autocannon emplacement. If there was anything that could make the Doom Marine feel anything other than anger, it was a lot of ammo and a big gun.

"Kill hi-!" The Doom Marine proceeded to mow down the surprised Iron Warriors in the open area before finding himself overrun.

'Requesting gunship backup. And also ask if any of the other groups can spare a few marines to aid me. If they can't, then that's ok too.' The Doom Marine asked Vega before the thunderhawk reappeared and began to use an array of bullets and rockets to kill any Iron Warriors it spotted. Meanwhile, the Doom Marine headed into the fortress as he dove behind cover when a storm of bolter fire hit the column he was hiding behind. Luckily, the Iron Warriors forgot that columns are also cover, and seeing as how they placed them so close together, he slowly made his way closer to them. And as we all know, if you're in CQC-range of the Doom Marine, you're as good as dead.

"Ra-!" An Iron Warriors marine shouted as his throat got punched in by the Doom Marine. He followed up by swinging around and slamming his fist into another Iron Warriors marine. Another attempted to charge at him with his power sword raised, but the Doom Marine whipped out his chainsaw and proceeded to have a slight sword fight against the Iron Warrior.

"Die!" The marine shouted before his sword was parried by the Doom Marine's chainsaw which proceeded to maul his insides. The Doom Marine continued to search around the Iron Warriors fortress before finding another room. He forced open the door and found a stockpile of Iron Warriors weaponry including a weapon encased neatly in glass. He clutched his head as another memory triggered within his mind. This time, he was being held by a cyberdemon that was gripping his stomach, but luckily left his arms free to move. He proceeded to pull out what he knew as the Burst Rifle, or lovingly referred to it as the Repeater. He aimed the weapon at the demon's head before pulling the trigger, causing it to fall backwards at the hard three round burst it shot.

The Doom Marine punched the glass before grabbing the weapon and just as he made his way out of the room he placed a trip mine so that if he could, he would still be able to secure this much needed weaponry.

"Sir, I'd like to inform you that this base seems to be hiding something underneath as the files show that the layout has a lot of underground floors." Vega stated as a waypoint appeared on the Doom Marine's hud. He proceeded to the waypoint before being met with the sight of a wall, knowing that it was a secret passage, he placed a charge onto it before blowing it open. His suspicions were confirmed as a secret tunnel was revealed. He walked through it before coming to a massive, dark room. He found a control panel before Vega led him through the instructions to turn on the lights, revealing a massive robot that was completely gray, most likely because it was supposed to be painted before being deployed until the Heresy happened.

"Ah yes, from the files, that appears to be a Warlord-class titan, part of a series of massive battle suits crewed by multiple people that was created by the adeptus mechanicus." The Doom Marine smirked at the newest addition before finding his current coordinates via Vega. However, before Saul and Vega could pilot the ship to pick up the new loot, he heard muttering as he came upon what looked like a workshop filled with designs and cool stuff. However, the Doom Marine smiled madly beneath his helmet as he made no haste to knock out the Iron Warriors warsmith. To capture an apothecary was a feet in itself, but to find a warsmith that could possibly hold designs worth interrogating for? Extremely lucky. Whilst dragging the warsmith back to the ship as it was finishing mopping up the remaining Iron warriors within the fortress, the Doom Marine noticed how the titan was all gray, most likely due to the fact that was ready for deployment, but required colors to signifies its allegiance until the Horus Heresy.

As much as this was also well and fun, and before the Harbinger of Doom could land to pick up the newly found loot, they had one final objective. Slay. All. Evil. The Argent Angels proceeded to attack all at once as multiple bases and areas were under siege by only a small group of the legion's space marines each. This was also due to the fact that the current Iron Warriors and Emperor's Children inhabitants were unprepared for such a sudden attack as it was normally impossible for any other space marines to attack due to the planet's close location near the Eye of Terror.

A Few Days Later, Time Unknown

"Fucking faggots." The Emperor Children loyalists of the Argent Angels aimed their bolters at the captured Emperor's Children traitors before executing them by firing squad. After days of besieging multiple fortresses and key positions, the Argent Angels had finally claimed their first world to be reclaimed by the Imperium (although there was a rule that these planets were to dedicate a portion of their resources to the Argent Angels and not just the Imperium).

"These fucks even changed their armor to pink and black. That's fucking gay, wouldn't you say brother?" Another one of the Emperor's Children loyalists said as another loyalist of their past legion walked up, this time with a flamer in hand.

"Extremely heretical, all of them." The flamer marine said before emptying the flamer onto the corpses of the Slaanesh worshipping legion. They soon turned as they heard cheering as the Harbinger of Doom had finally landed, and with it, they watched in awe as the Warlord-class titan was pulled in. They also heard the Boo'ing of the legion as they saw the Emperor's Children chaos apothecary and the Iron Warriors warsmith hauled into the ship as well. And something about them made a certain former Dark Angel extremely angry that he was shaking with absolute rage. Following that, the marines were helping unload the captured stockpile of weapons from the fortresses, providing them with a nice amount of firepower. And as much as the Doom Marine seemed like an unemotional asshole, these rumors were ended when he had ordered that they'd be staying on the planet for a bit to watch over the surviving civilians until the Imperium arrived to retake the planet fully. At this current moment however, the Doom Marine was watching the Emperor's Children apothecary in a cell.

"Where am I?" The apothecary stirred himself up and asked before spotting the Doom Marine and realized he wasn't on Vildnar IV anymore. He charged at the Doom Marine, not realizing he was armorless, who simply pushed him back to at least let the apothecary realize the state he was in.

"You're here because you're not like your traitor brothers, aren't you?" The Doom Marine's prompt read as the apothecary charged again, only to be met by the Doom Marine's fist to his face.

"No! I am… an agent of Chaos! Dedicated to Chaos Undivided!" The apothecary shouted in response as he made another charge, this time the Doom Marine merely sidestepped and tripped the apothecary.

"Then why would someone like you take care of a sick slave when you could have easily just slapped something on her and send her back to her inevitable fate? Not to mention, they're easily replaceable are they not?" The Doom Marine asked.

"Or do you lust to help others? Or maybe, you bathe in the blood of those you heal? Anything like that?" The Doom Marine couldn't help but cringe at his attempts to mock the Chaos Gods since he should be able to think of something better than what he was attempting to say now. The apothecary held his head in defeat as he sat down on the floor.

"No… I just wanted to follow my brothers, what fate would I suffer if I hadn't followed them? Suffer the same fate of those on Isstvaan III? They're all devoted to our ascended daemon primarch, Fulgrim, and why would the Imperium accept a traitor marine, let alone an apothecary back into its grace whilst letting them live?" The apothecary asked with his head still in his hands. His was more along the lines of peer pressure rather than choice like some space marines. In fact, he must have actually wanted to get off the path of Chaos.

"Well, you're in luck brother, for you're aboard the Harbinger of Doom." The Doom Marine turned to see a few of the Argent Angels from the Emperor's Children outside the windowed room, which he knew had an audio feed and mic. The apothecary's expression soon became a bit frightened as he had heard of what this new legion was capable of.

"However, the Argent Angels are autonomous from the Imperium, so we don't have to abide by their rules." The apothecary was surprised by this statement.

"So we'll make it simple for you, you traitor dildo. You become our legion's apothecary, and we'll induct into it after a while. Or we could just kill you now, right brothers?" The Emperor's Children were all snickering at their evilness, which the Doom Marine really couldn't have said anything different as he was about to say the same thing in a lighter, less direct tone as his message prompt could manage.

"I'd rather take that chance. What would you have me do?" The apothecary asked as the Doom Marine smirked.

"You'll have to stay in the barracks for five days straight. No leaving unless I say so, and you're at the mercy of your fellow legion members." The Emperor's Children loyalists were all grinning evilly at the Doom Marine's order. One of the Emperor's Children loyalists led the apothecary out of the cell before leading him to the barracks.

"Meet your new battle brothers. Have fun!" The Emperor's Children loyalist said as he pushed the apothecary forward, met with the looks of multiple marines from the different traitor legions all carrying the same evil grin as the Emperor's Children loyalists.

"The path to redemption is painful, you'll learn that quickly." The Emperor's Children loyalists said before they shut the door behind the apothecary as the rest of the marines walked menacingly slowly towards the new apothecary.

The Next Day, Time Unknown

"HAHAHAHAHAHAHAHA!" The Doom Marine laughed with his true voice as the Emperor's Children apothecary appeared at the command center as he was to wake up 3 hours before any of the Argent Angels were to awaken. His face was also extremely bruised along with having multiple explicit things drawn onto his face. However, the object of attention was how everyone present in the bridge were surprised at how the Doom Marine had used his real voice in front of them for once, and for it to be used on an expression they didn't think was possible for him. He continued to laugh for a few more seconds before going back to his usual demeanor as he stared down the apothecary.

"Anyways sir *cough* *cough*, I took the liberty of examining the records of every Astartes aboard and have nothing to report except that they need to go through a check-up so that I may *sniff* update their records." The apothecary tried not to slur anything as he had received quite the beatdown after his first day in the barracks. The Emperor's Child walked out of the command center leaving the Doom Marine and Saul to converse once more.

"So, what will be our next course of action sir?" The second-in-command asked as the Doom Marine looked at the current data logs within the ship. The latest entry being the capturing of the Warlord-class titan, now dubbed "The Final Doom".

"What about this titan? Are we able to deploy it along with our forces?" The Doom Marine asked.

"Unfortunately not yet sir, we'd need a team from the Collegia Titanica of the Adeptus Mechanicus to pilot one, which would prove to be hard as they do not use titans that have been tainted with chaos. They are also extremely zealous whenever it comes to machinery." Saul responded as they looked at the titan in the loading bay.

"Put me through to the Emperor please." The Doom Marine's prompt read as Saul shook his head.

"I've already tried to make contact with them, but I'm afraid I cannot.

"Ah, what about our other captive?" The Doom Marine asked as he switched to a camera feed of the now armorless Iron Warrior who merely sat in his cell peacefully, his hands folded as he stared at a wall.

"I assume you're going to try and turn him to our side?" The captain asked as the Doom Marine shrugged.

"Maybe, but I doubt he would seeing as how he seems genuinely intent on serving Chaos." The Doom Marine's prompt responded before he walked to the small prison area before entering the cell of the Iron Warrior warsmith.

"I assume you're intent on making me repent?" The Iron Warrior asked as the Doom Marine raised an eyebrow.

"No, I just want you to stop following Chaos." The Doom Marine answered as the warsmith shrugged.

"I don't even know why I was there in the first place, those traitorous brothers of mine were annoying like none other." The warsmith responded as the Doom Marine was surprised.

"What do you mean by that?" The Doom Marine asked.

"I never joined chaos in the first place, I merely worked on that massive floor by myself and never gave two damns about the heresy. My dedication does not involve worshipping some disgusting fucks." The Iron Warrior responded. It was surprising how this warsmith somehow managed to work right under the noses of the Iron Warriors traitors, and also not care about the war waging in the Imperium at the moment.

"Well if I asked you to serve this legion of the loyalists of those traitor legions, would you accept?" The Doom Marine asked.

"Fine by me." The Iron Warrior responded as the Doom Marine shrugged. He knew the marine wasn't lying, as Vega's heartbeat sensor did not detect any sort of lying and the demonic presence scan came up with nothing.

"Well then meet your brothers in the barracks, they'll help you get set up." The Doom Marine said as that was a somewhat weird way of recruiting.

"Ah, sir, I finally got through to Terra." Saul said in the communicator, causing the Doom Marine to run back up to the bridge before being met by the sight of the Emperor.

"Hello sir." Vega's voice greeted the Emperor.

"The Doom Slayer speaks?"

"No, I am actually the AI present within the Doom Marine's suit of armor, Vega." The Emperor narrowed his eyebrows in response.

"I will be speaking on behalf of the Doom Marine." The Emperor nodded in response.

"What does he want?"

"He asks if you've deployed forces to re-fortify Vildnar IV?" The Emperor nodded.

"Good, however, he says that we must request something from you."

"What?"

"Upon conquering Vildnar IV, we discovered an unpainted Warlord-class titan and wish to refit it and add it to our arsenal."

"That may prove to be a problem." The Emperor asked to which the Doom Marine nodded.

"Then you'd have to ask the Adeptus Mechanicus either for a titan crew to join your chapter, or have a group of people trained by those on Mars to pilot the titan, which could take years."

"That will be all." The screen cut out as the Doom Marine pressed a button meant to make another copy of Vega. When they made a stop at an Imperium controlled world, they had modified part of the ship to be able to house multiple back-ups/copies of Vega for use with any technology present.

"Let's go test something." The Doom Marine's prompt read as he motioned for Saul to follow as they headed for the hangar. Soon enough, they were faced by the sight of the massive titan, the mere size of it daunting already as they stood at its feet. They soon took a lift that raised them up and onto the shoulders of the titan before finding an access hatch and walked into the control center of the titan. The Doom Marine soon plugged in the chip that housed a copy of Vega, and to his surprise and joy, the titan's control panels lit up as it sputtered to life.

"By the Emperor, it works!" Saul said in awe as Vega soon spoke.

"Forgive me sir, but the titan's controls are a bit complex, even for me." Vega said as the microphone buzzed on.

"Attention Argent Angels, do not be alarmed. This is a test. I repeat, this, is a test." Vega said before he took a wobbly step forward with the titan. The marines in the hangar watched in awe as the hulking robot was piloted without a crew but rather an AI introduced by the Doom Marine.

"Before I am able to go further with this sirs, I must be put into a real combat scenario." Vega stated as Saul and the Doom Marine nodded.

"We'll find another planet to recapture, but for now, continue to practice moving while you can Vega."

"Of course." The Doom Marine and Saul soon exited the titan whilst Vega continued to walk in circles and slowly as the AI gained confidence in controlling the titan, his walking speed increased until not a day later was he able to run and take aim with the massive titan chainfist and hellstorm cannon. The shoulder mounted cannons and missile launchers also took some getting used to, but Vega reported that he was able to aim accurately enough to take down a vehicle or groups of enemies through simulated combat scenarios.

"I want to add gatling guns to that chainfist. And a massive flamer to that other cannon arm." The Doom Marine's prompt read.

"Noted sir." Vega responded immediately.

"Ah, a planet has appeared that is ridden with Chaos sir." Saul stated as he pointed to a moon with a high demonic presence level. After a week of space travel, the Harbinger of Doom soon stopped just before the ship was hit by multiple lasers.

"Apologies sir, but I cannot dock the ship in the appropriate landing area until the planetside laser silos are shut down." Vega said as the ship began to move again in an attempt to get out of the lasers' range.

"We'll take the thunderhawks and act as shock troopers this time. Saul, stay here with the ship in case any judgement calls are required on my behalf." The DOom Marine said as he ran towards the loading bays. The Argent Angels were already ready to be deployed as soon as they heard explosions. After quickly loading the thunderhawks, they made a beeline for a possible laser silo and did a flyby before descending down. The Doom Marine's face twitched into a grin as he heard the new battle cry that the Argent Angels had come up with.

"Through Hell and back!"

-End-

Author's Note: Ok, so so far, I see only reviews voting for no harem, which saddens me greatly, however, I understand how no one likes it when they enter someone's magical realm. EXCEPT THAT EVERYTHING IS MY MAGICAL REALM HAHAHAHAHAHAHA.

This also solidifies that I'm going to write a separate fic about heretical harem, because why not?

By the way, the only reason why this chapter is so long is because I merged chapter 4 and part of chapter 5 from the original together.

Also, the whole bit about Alpharius living is supposed to be confusing as no one is certain about the Alpha Legion.