Inside Firebase Bravo, a few minutes after they lost communications to the whole team. Williams gets frustrated as he tries to contact Corporal Rhodes, getting no contact whatsoever, unknown if they are dead or not but one thing he knows is that Doom is still alive. VEGA still has contact that Doom is still alive, knowing where he is and is probably still with the others unless they are all dead.

"Do we still have the location on where the Doom Marine is?" Williams said when looking towards VEGA who appears nearby

"The Doom Slayer is moving fast, away from the city as if he was driving a vehicle."

"Where the hell is he going?"

"Like I said before, he is moving out of the city, it is possible that he is with the marines."

"They would have contacted us before leaving."

"I do not know what they are doing; I have no images on what is going on down there."

"Bloody hell…."

"Is there a problem, sir?" Travis heard the conversation when he entered the room a few seconds ago

Williams looks back to Travis "Sergeant Travis, we lost contact with the marines and your Doom pal is leaving the city."

"He's doing what?"

"It is possible that they found the marines and are leaving the city." VEGA said "It is unknown to why they would not respond."

"Can we get a location on where he is going?"

"Certainty, just give me a few moments to calculate the trajectory of where he might go to."

"So much for that guy." Williams said when looking at the screen

"Hmmnnn…"

"Something wrong?" He looks back to VEGA

"I am picking up a communications; it is coming from a place called Capital Prime."

Williams sighs then looks at the large screen on the wall "They probably want a report…" He moves away from his desk and stood in the middle of the room when looking at the screen "Patch it through."

"Certainly."

Both Travis and Williams stood together when looking at the screen, soon seeing an image of someone they did not expect, a man who is a General of the UAC's Marine Corps name Forge. He showed his face on the screen, seeing he is in his late forties, he had a short black beard on that matches the colour of his hair. His eyes are blue but could only see one because of the eyepatch on his right eye. His armour he was wearing was a bulky heavy armour on but could only see a slight of armour as you could see his shoulders.

The moment everyone in the room looks at the screen, everyone in the room got up off their seats and stood tall as they salute to their commanding general. After he ask them to at ease, they lower their arms and sits back down except for the ones who were already standing up.

"At ease everyone." General Forge said to them "I just want to let you know what a job well done after removing Hell's Mountain. I know you lost many lives in that battle and I know you could really need a break, sadly that has changed. I am calling back Firebase Bravo, Firebase Delta and Firebase Charlie."

"Sir?"

"I know that taking down that portal was a success but right now it is time for Operation: Exodus. I need all available ground forces to return to Capital Prime, it is time to evacuate those who cannot fight for this planet."

"So that ship is now operational?" Sergeant Travis asks

"Indeed… This is going to be the last ship created on Earth. All of our ground forces will make sure, that it will make it into space, after that, we will be on our own down here continuing the fight."

"What about our forces in space?" Williams asks "Will they finally join us?"

"They will join us on the final battle ahead of us. Once we get that transport ship into space, we will soon go on the offensive against the other portals and destroy them, after that we will launch an invasion with what we have across the east to get to Nexus Tower."

"Do we have a chance in hell against them?" Travis asks

"No…" Forge shakes his head "But we will destroy them all… Earth will not swallow into damnation."

Elsewhere, back with the Crusaders and their move towards their hideout that lies underground, underneath a mountain. On the outside of the entrance, protected by a few trenches around the area with a few Crusaders inside, also got themselves some landmines placed across the area. The only way through towards the entrance, without blowing up was a dirt road that leads straight through. They go straight through with the two vehicles, sending them towards the front of an underground garage that was next to the bunker. Before they go through, they need to unload their troops, making the APC and the truck to circle in a one-eighth in front of the entrance, unloading the Crusaders and the UAC marines, getting them out of there and going straight inside.

As the whole group makes their way inside, their leader with the white armour stops before entering through, turning his head towards Doom as he walks out, seeing one of his Crusaders forcing him to move but Doom is not budging. He soon looks forward and walks inside and soon got Doom to follow, seeing he wants answers and he better deliver them because that is the only thing stopping him from freeing the marines.

Everyone went down a long stairway that reaches into the bunker, seeing the walls made of stone and could stretch miles, filled with many people who are fighters and those who are innocent civilians. All are here to help the Crusaders in this fight, here in one of the few bases of what is left of their military power of the world.

Their leader steps to the side while his men moving past him, holding onto the marines as they take them further within. Just when he looks towards Doom, seeing him about to walk past him, the leader would grab him to stop him, making Doom to turn his head towards him.

"You and I need to talk elsewhere." The man said to him, waiting for the others to continue walking before he moves forward, having Doom following him. "I know you have questions… I want the same thing but after seeing you, I can tell that you and I are probably not born in the same foxhole."

The two keep moving further ahead, making a right turn and heading straight up ahead, seeing two opened doors on the right side, seeing that these two doors connected to this medical room. It was stock with several injured soldiers without their armour, lying down on the beds, taken care of by ten medics and doctors in the room, tending to their injuries.

This here would get Doom's attention when he stops and looks towards them while the leader moves on ahead, soon stopping as he realise that Doom is not following. Doom was just looking at the injured people; especially towards one of the Crusaders who had his armour on, having a female medic to slowly take off his helmet.

That there triggered a flashback of Doom's past, during a time when he first set foot in the great sanctuary of Argent D'Nur. This huge fortified stronghold and a sanctuary, the place where these people worship the Elemental Wraiths and will sacrifice their lives to protect them, seeing that they are the only thing that makes them stronger. The Night Sentinels will protect this place, putting their lives on the line to stop the demons from entering their sanctuary.

The demons would have to go through this huge red flaming portal in order to reach the walls of Argent D'Nur, there they have to go through this rough terrain in order to reach this high wall, there the Night Sentinels hold off against them for so long. The Night Sentinels and their strength, the keystone of defeating the demons but is difficult to win the war against them as they have no way of closing the breaches. Thanks to their powerful strength, they hold off against them and pushes them out of here, allowing the Night Sentinels to enter Hell anytime they want, because of that; they found the man who will become a king.

The Night Sentinels took him inside the sanctuary, placing him under guard by eight Night Sentinels who stood around the room, leaving Doom to sit down in the middle while having that female with the Praetor Suit to tend to his wounds. She was healing him with her hands, placing her hand over his injuries, showing they heal instantly with just her soft touch.

"We Night Sentinels hold powerful abilities thanks to the ones we worship." The female spoke, still speaking underneath that helmet "Our strength, our speed, our invulnerability and our regeneration." She lowers her arm once she was done, seeing Doom raising his arm up, seeing not a scratch on it "You must have been through a lot down there, I have no idea a human like you could survive."

Doom lowers his arm when looking at her, seeing this woman sitting there on her knees, knowing she is human but not like him. He soon turn towards the others in the room, seeing all of these Night Sentinels standing there, wielding these swords on their waists.

"You understand right?" She said when looking towards two of the sentinels who stood by the entrance "I am a Queen of the Night Sentinels…" She looks back to him, seeing him looking back at her. She will tilt her head to the side when seeing that he is bleeding as a bloodline comes down from underneath his helmet. "You're bleeding." She slowly moves her hand to his helmet "If you can –"

Doom grabs her hand to stop her from touching his helmet, triggering the Night Sentinels to go active when all of them took a step forward, placing one hand over their swords, ready to strike after laying a finger on her. She will look back at them before looking back at Doom, soon lowers her hand down when he lets go of her.

She sighs then looks towards her Night Sentinels "All of you get out. Now!"

All of them stood their ground for the moment after she said that, they would soon obey when they lowered their hands and began dispersing from the room while she stays alone with Doom, giving him what he wants. After that, she will stay sitting there, looking back at him but she lowers her head when she starts taking off her helmet, showing her face to him. Doom will lean back when she reveals her face, seeing this beautiful woman with a slight smile on her face. After that, she will slowly move her hands towards him, making him reject at first and causing her to stop but he slowly moves forward, allowing her to take off the helmet. This will be the first time Doom surrendered to someone, allowing her to take off his helmet and show his face to her.

"Well now…. Hello handsome…" She smiles to him while placing his helmet down next to hers then looks back to him "Could you tell me your name?"

"Hey!" The man in the white armoured ended the flashback when he grabbed his arm. Doom would quickly act and grabs his arm, soon realising where he is and together they both let go. "Come on." The man said when turning away and starts moving forward, straight towards a doorway up ahead.

The two made their way inside this rectangular room, showing a stairway up ahead that leads upstairs to an area that could be the control room, showing some machines against the walls, could be the area where they power up the bunker. The upstairs room had a few computers together by the desks in front of the machines, also showing a circle table in the middle with three people standing there, talking to one another.

One of them that was a female, wearing regular clothing with a scientist coat on. She appeared in her late twenties and had long blonde hair, tied in a ponytail. She looks over towards the two when they came up the stairs, causing them to stop talking and turn their heads towards them.

"Marcus."

"Hello Samantha." He walks over to the group while Doom stops at halfway. Marcus will look back once he stood in front of the table, getting the others to look towards him

"Who is your friend?" She asks him when looking towards Doom, looking at his armour then looks back to Marcus "I don't remember seeing them making a green Slayer."

"He's not one of us… I think I found the original."

"Original…" One of the men said to them, looking towards Marcus then towards Doom "As in…"

"Doom Slayer!?"

Someone else in the room said that, getting everyone's attention, including Doom when he turns towards a Crusader with his armour on. The man moves closer to him and starts taking off his helmet, showing his face to him and caught him by surprise.

"You remember me?" The strange Crusader asks "It's me… Randall."

Doom nods and walks over to him, lending his hand out and so did he, shaking hands together and putting a smile on Randall's face.

"Wait a minute…" Samantha steps into this when walking towards them, getting them to turn towards her once there done "You know this man?"

"Of course I know this man." Randall responds "I met him when I was stationed in that dead city." He turns his head back to Doom "I was there when he came here from the sky."

"Seriously?"

"He came from the sky?" One of the others said "Is this a joke?"

"We are in the fresh ends of hell here." Marcus said when looking towards him "There is no joking around when it comes to aliens…" He looks back to him and walks over "But the bottom line is this… He is the original."

Elsewhere, Corporal Rhodes and his marines made their way inside a rectangular room that had four marines inside. They are the ones who survived the crash, seeing that the Crusaders took them alive for questioning for later, still unknown why they brought them here because they have not ask the questions to these marines yet.

"Corporal Rhodes?" One of the marines said, seeing him standing up off his bed when they entered the room

"Yeah…" He responds "So your all alive."

"Yeah."

"Barely." One of them said, still sitting on his bed and looking up towards Rhodes "The damn Crusaders saved our lives out there…. Then they turned on us?"

"But why?" Rhodes looks to him then back to the one in front of him

"That's what we want to know…"

"Well… That Doom Marine didn't do anything."

"You brought him?"

"Yeah."

"So how come he isn't storming through here and beating the crap out of everyone?"

"I don't know…." Rhodes sighs then looks towards the locked door "Maybe…" He looks back to them "Probably negotiating in a non-talking way."

"Well we know one thing…" One of them said "If they wanted to kill us, they would have done it by now."

Back to Doom and the others, the conversation change back to Marcus and about the symbol, seeing that Marcus was standing against the wall with his arms crossed, looking towards Doom who stood there next to Randall. Doom will just stand there while Samantha was examining his armour, using this type of scanning device to scan the armour, moving it down to his feet them moves to his chest then to the arms. After she was done, she backs away, checking to see the status on the screen to see its reply on the armour.

"Well…. Your material of your armour is unknown… Your armour is a strong dense, it could be Adamantine or something but this is incredible, I am surprise you can still run around in this."

"Adamantine?" Randall asks

"Adamantine is a strong and powerful mineral that is not on Earth but if this man came from Hell then we have a clue on where its origin lies."

"No way…" Marcus intervenes "Just look at his armour… I see a lot of scratches."

"Well it is true… But his armour could be Adamantine while your armour…" She looks towards him "Is Titanium Alloy."

"So he is not part of that initiative then." Marcus said then looks to Doom "I am sorry to say this bro, I am not like you. I was born and raised on Earth, trained to become a super soldier."

"The UAC was creating weapons." Samantha said "Biological, super powered, Argent and BFG powered weapons that we can use against the demons. A group of scientists began working on creating super soldiers, using them as the front line infantry to rip demons to shreds."

"Of course…" Randall said "That is why you two wear similar stats." He looks towards Marcus "They were creating Doom Slayers… Slayers they can control and use against the demons."

"Not all of us were under the UAC's finger." Marcus said "I defected the UAC after finding the truth, because of the truth, the Crusaders was born. Both UAC and the army together, we became the Crusaders who will fight the demons and not fight for the UAC."

"While others stay in the UAC because they are the only hope of defeating the demons." Samantha said then looks back to Doom "But that symbol you have on your head" She looks at Doom's symbol "Every super soldier wears that on their helmets."

"Yeah we do… I am sorry that we have to wear your armour and symbol… But we didn't even know you were even real." Marcus said "Besides… We couldn't wait for you anymore…"

"So Doom Slayer…. What took you so long?" Samantha asks

Another Crusader would come through to stop this conversation, getting them to turn their attention towards him. "Sorry to interrupt. The marines are all in place."

"Then let's get this over with then." Marcus said when moving off the wall and lowering his arm "I still regret allowing them to be here."

"We can't declare war against the UAC unless we know why they did it." Samantha said "Besides we still need them against the demons."

"That attack they did…" Randall said then looks to Doom when he looks towards him "Let me fill you in the blanks… A few days ago, a squad of marines found us and open fire on us. They killed six of our people and injured twelve. We captured one of them but he went insane… He almost killed another but Marcus put a bullet through his head."

"Let's see if they give us a good explanation." Marcus said when moving past the group, making his way downstairs to leave the room

"Come on marine." Randall said while moving to the edge of the steps while looking at Doom "Let's get this over with then we return to the fight."

"Actually…" Samantha intervenes and moves in front of Doom "Do you mind if I borrow you for a moment? I want to check something out if that is alright."

"We will take care of this." Marcus said to him "I think I know what she is asking for."

Both Randall and Marcus moves out of here while that scientist woman stays behind, asking Doom to see something in research complex. The three make their way towards the prison room; there they will ask Corporal Rhodes to peaceful walk out of there, standing outside of the door and looking towards Marcus and the others.

"So you finally going to give us answers?" Rhodes asks Marcus

"You need to come with us."

Rhodes sighs "Like I don't have a choice in the matter…"

The group moves off elsewhere in another part of the bunker, moving into a room that is covered in dead bodies of the UAC marines, having them all zipped up in bags and lined up. One of the doctors will unzip one of them and opens it up, showing Rhodes a face of a marine while Marcus talks to him about what he told Doom. He explained to him about what happen here between them and his men, locked into a firefight for reasons unknown.

"So… You have any explanation about all of this?" Marcus asks

"I… I don't understand…"

"What do you mean you don't understand?" Randall intervenes "Your men attacked us for no reason… They killed our people and we killed them, you guys are still alive because Marcus said so, if it wasn't for him then you would all be dead by now."

"Which would trigger a war between each other if the UAC found out about this… But I don't think your friend will lend us a hand against you guys."

"…." Rhodes moves closer to the body to get a look at his face, thinking about it at first but something did came to his mind and mumbled about it. "Viper Squad…."

"What did you say?" Randall asks

Rhodes looks back "Viper Squad."

"Viper Squad?"

"Look… My sergeant told me that during the attack on Hell's Mountain, they lost contact with a squad out there. They suddenly vanished during the battle against the demons, they were supposed to join us on flanking them but they never showed up."

"Are we supposed to believe that?"

"It's the truth!"

"So what… Some squad vanishes from your operation and started attacking us?"

"Why the hell would we attack you?" Rhodes asks "It doesn't make sense."

"That's why we want to know." Randall said "You guys attacked us –"

"Hold on Randall…" Marcus said

Randall looks back to him "But sir."

"I don't want to believe this… But he is telling the truth. However, the only way to actually find the truth is to find the rest of Viper Squad."

"I thought you killed them all?" Rhodes said then looks back to the bags of bodies, seeing only five bodies in bags "Were missing a few."

"There was twelve of them in a squad right?" Marcus asked "Seven marines attacked us… One is in the other room with a hole through his head while the other got blown up outside."

"So where are the others then?" Rhodes looks back to him

"They fled to a factory, we were tempted to go after them but we decided to see if you people had something to do with the attack those men did."

"Then why are you wasting time on us then?"

"I just wanted to see how you would react to this." He turns back "And to see if you people were actually behind this but you are not lying about this." He starts walking out of the room

Rhodes looks back to the dead marine he was looking before, seeing the doctor zipping it back up again. He would turn back and so did the rest of them, returning to the room where the rest of the marines are while talking.

"Were preparing to send a team after the marines, if we find that there is more then we will not hesitate to kill them all." Marcus said "You know that, right?"

"How many UAC marines have been located in this area?" Rhodes asks

"Not many." Randall intervenes "We only see your transport helicopters flying over; we never expect to see ground troops."

"So this just started… The same time when we attacked Hell's Mountain a few days ago."

"This can't be a coincidence, whatever is behind this… I bet it has something to do with the demons." Marcus said

"You think there are soldiers working with the demons?" Rhodes asks

"It's possible… I know that on Mars there used to be demon worshippers on that damn planet. Look where it got them."

"It's also possible that the demon soldiers are born somewhere, right?" Randall asks "I mean they are like us but demon version."

"That is a theory that we can't test right now." Marcus stops when reaching the door then looks back to Rhodes "Were going to that factory and we need you to assist us."

"Assist you… After you guys went and kidnap us?"

"We haven't really killed any of you yet." Randall said "Besides I still don't trust you marines but if Doom is on your side then we can't harm you guys."

"Oh really? You think Doom will step in to stop this mess?"

"Well I have no idea, why don't you go and ask him."

"That guy doesn't talk, as if he will say anything to us."

"Good point."

Marcus looks back to Rhodes "Well anyways… Can you guarantee a success in this mission, or are you planning on betraying us along the way?"

"And what if we do?"

"I recommend that you don't turn on us, it would be wise to gather allies and not get more enemies while fighting the demons."