Author's Note: This was an idea I've had for a while and I've finally put it to paper. For now it's just a one-shot, so we'll see how this first chapter does. Hopefully my set up isn't too convoluted. There's more details I will discuss at the end of the chapter, for now, I hope you enjoy.

Disclaimer: I do not own Halo or My Hero Academia.


An Engineer Meets a Spartan

2010 Hours, 2525-11-27 (US Military Calendar),

Covenant CRS-Class Light cruiser Unrelenting,

Chi Ceti System,

PO2 034, Samuel,

[]

The rhythmic clatter of automatic fire echoes throughout the dimly lit room. The muzzle flashes would illuminate the area just enough to reveal the lifeless bodies of the formerly living Covenant crew members along with spent 7.62x51 mm bullet casings which littered the floor. As another burst was fired, a body plopped onto the cold metal floor, riddled with still smoking bullet holes. The strange dark purple blood seemed to glow under blue toned lights of the room as it pooled out from under the body. The rifle clicks empty and Sam ducks behind a crate and instinctively removes the empty magazine and replaces it with a fresh one. He slaps his rifle's charging handle and rounds the crate spraying down a few more of the little aliens.

A jackal attempts to rush him from behind with a crystal knife. Hearing the footsteps, Sam slightly adjusts his grip on the rifle, and in one smooth motion, slams the stock of his rifle into the face of the approaching alien. The hit was enough to shatter its jaw and knock it off its feet. The alien's body still carried enough forward momentum that it made the alien's legs fly out from beneath it. It flopped onto the floor and Sam silenced it with a single burst to its chest. A few green plasma bolts fly past him, and Sam spins around and fires a burst into a jackal just as it was adjusting its energy shield. He swivels his rifle around and fires three long bursts, cutting down another squad of grunts.

"Wort, wort, wort!" an elite barks.

Sam dove into cover behind some purple crates as he is fired upon by the enemy squad leader. The alien lets out a few more growls in his respective language as he continues to fire at the Spartan's position. Sam reaches down to his grenade belt and sees he still has a couple grenades which were brought along for the initial insertion. He primes one, cooks it for three seconds, and then throws it directly over his cover and listens. The elite pauses as it sees something tossed his way. His eyes widen in realization and he tries to dive out of the way just as it explodes at his feet, throwing him to the side and taking down a quarter of his shields with it. Before he could react, Sam immediately charges him while hosing him with automatic fire. The elite's shields pop just as Sam's rifle runs dry and he leaps over the remaining distance and drives his rifle stock into the warrior's breastplate and he falls to the floor with a noticeable crumple in his chest. He lets out a pained gasp and watches as the human raises his rifle and brings the stock crashing down into his face.

Sam pulls out his magnum and scans the room for any remaining hostiles, he lowers his weapon when he was sure he was in the clear. He bends over to get another look at his wounded side and hisses in pain as he touches along the edge of the blackened and charred skin. For a brief moment, he had time to think and began recalling the events that lead to his current predicament. Literally only a couple of minutes prior, he had taken that plasma bolt meant for John, his squad leader and best friend. He ultimately felt satisfied with his choice, the only thing that bothered him was that now his spartan brethren would have to fight the Covenant without him.

"Give them hell, John," Sam whispers to himself.

He walks over to where the tactical nuke was to check the timer and sees that it reads "5:35."

Just as Sam was about to reload his rifle, he sees something shift just out the corner of his eye. With his enhanced reflexes, Sam instantly spins around and has his magnum drawn and focused on this unknown threat. What Sam saw made him freeze, before him was something that resembled a floating blue and pink jellyfish wearing some kind of black suit. He knew it was looking at him as it's snake-like head had its small black eyes trained on him. The two stood there for a moment, neither moving or making a sound….well, technically he stood there, the alien actually didn't have legs and instead floated three to four feet off the ground, it tended the bobb a little ever so often.

Alien chatter rang out from the north entrance of the room, drawing both of their attention. Sam then sees the strange creature move and Sam tightens the grip on his sidearm. All of Sam's training told him to end the potential threat now before its back-up arrived, but for some reason he couldn't pull the trigger, it was as if something in his mind was holding him back. Sam watches as one of the creature's tentacles hits a button on the door console and the doors at the room entrance shut just as another squad of Covenant were approaching. With a couple more button presses, Sam hears a loud metallic *thunk* telling him that it was locked.

'Why did it do that?' Sam mentally asks himself.

Sam lowers his weapon just slightly and is surprised by the alien again as it picks up what looked like a bolt and starts rhythmically tapping it against the wall. Very quickly, Sam realized that it wasn't just tapping, it was using morse code and was trying to speak to him.

Sam's eyes widen in surprise and he listens as the alien says "Not enemy…Friend…No Harm."

With nothing to lose, Sam decides to take a gamble, lowers his magnum and reaches down into one of the satchels his team had brought with them and pulls out a tacpad.

He then slowly and clearly asks "Do you understand me?"

The alien moves its head up and down.

He holds out the tacpad and asks "Can you use this to talk?"

The alien moves forward and picks up the device and examines it briefly. Sam then watches in pure fascination as one of its tentacles separate into many smaller ones and proceeds to disassemble the device in less than a second. It briefly examines the assortment of parts only to quickly reassemble the device even faster than it disassembled it. Sam figured that it must have been some sort of engineering race for the Covenant.

Then text began to scroll across his HUD and he read "Greetings, Reclaimer."

Straight to the point, Sam asks, "What are you?"

"I am Bobbs a Little," he types.

He looks over to the warhead and states "You wish to destroy the ship."

"They fired first," explains Sam. He looks over to the bomb and adds "So we responded."

"But why are you still here?" he asks. "You'll die too."

Sam moves and shows his wound to the alien. It lets out a sad whine as it realizes Sam's current state.

"I can't leave," he says softly.

Bobbs a Little was silent for a moment, and then he let out a sharp whistle and moved towards the giant structure in the center of the room. He stops and motions for him to follow.

"Follow Reclaimer," he instructed.

"What are you doing?" asks Sam.

It didn't answer Sam, instead he typed something into the center console and a door on the central pillar opened up.

"You thought this was the reactor because of the residual radiation," Bobbs a Little notes. "The Hierarchs believe this was supposed to be some form of doorway to other "Holy Sites,"" Bobbs a Little explains, "But they could never get it to work as it was locked, even to us."

He stops and turns to face the Spartan.

"Since the Covenant races aren't the Reclaimers," he types, "They can not access this technology without forcing me and other Huragok to open it for them."

"You're slaves," Sam murmurs in realization.

The alien nods, he moves off to the side and motions for him to come forward. Sam steps forward and Bobbs a Little pushes one last button and they watch as a globe like hologram activates in the center of the console. Sam looks between the console and Bobbs a Little, unsure of what to do.

"What is it?" Sam murmurs.

"It's a slipspace matter transporter," Bobb's a Little type, simple and to the point. "It was designed to be able to send small amounts of troops and equipment directly to the surface of a planet or to another ship anywhere in the Forerunner Ecumene." He turns back to Sam and types "It requires the touch of a Reclaimer to work."

He moves to the side and motions for him to come forward. Sam gives one last glance at the alien before slowly raising his hand, he watches as the globe spins around to align with his finger prints. He places all five fingers onto the globe and it flashes. A loud rumbling permeated throughout the room and Sam watched in awe as a beam of light shot down from the ceiling and the rooms exploded light particles outward. When the light faded and Sam's vision cleared, all that was left were what resembled holograms of stars and systems in their positions relative to the device. Suddenly, a random system is highlighted red and the holograms repel back into the console and form into a projection of a planet. Sam stares in shock at a horrifyingly familiar planet on the display.

"Erde-Tyrene," comments Bobbs a Little as it comes up beside him, "The name popped up numerous times as I was sifting through the days, logically it must be important."

"Earth," Sam whispers.

"Shall we proceed?" asks Bobbs a Little.

"Will it be safe for me to travel with a breached suit?" asks Sam.

"I do not have the relevant data to answer your question, Reclaimer," he replies, Bobbs a Little lets out a sad whine. "My current equipment is not rated for vacuum either."

The engineer then pushes a button on the console and the familiar blue glow of a slipspace portal forms in front of them.

He turns back to Sam and types "The Covenant are not known to be the most gentle when handling Forerunner technology, and this was installed before I was assigned to this ship."

"You don't even know if it works?" Sam asks incredulously.

Bobbs a Little shakes his head from side to side.

"This is the first time it's been activated since it was installed," he replies. "This is the only possible vector for your escape," Bobbs a Little then looks over to the nuke and comments "Unless you would rather stay with your atomic weapon."

It was comforting to Sam that Bobbs a Little had yet to show he was hostile in any way, but Sam could only wonder if the alien was just setting him up to be captured. Seeing no other alternative, Sam was forced to place his trust in an alien he had literally just met.

*crash*

Both Sam snaps to attention and he watches as something big slams into the other side of the locked doors. The doors suddenly began to glow hot red from concentrated plasma fire.

"Reclaimer, we must leave now," Bobbs a Little lets out a fearful whine to emphasize his point.

Now having made a decision, Sam fixes the shotgun and sniper rifle to his back plate, and a plasma pistol to his other thing. He then proceeded to fit as much ammo and grenades onto his belt as he could and whatever guns and equipment that was left, he shoved into the duffle bag that Blue Team had left behind.

Sam then rushes over to the bomb and looks at the timer which read "3:23." Sam glances over to the door and sees that the fire had stopped and now something big was trying to beat their way through it. As the door begins to buckle, Sam changes the time on the detonator to only forty-five seconds and then rushes over to the portal.

"Here, hold onto this," Sam tells the alien.

He hoists the duffle bag up and places them into Bobbs a Little's tentacles.

"Go on through, I'll be right behind you," Sam tells him.

The alien lets out a concerned whine as well as an inquisitive trill.

"I'm gonna slow them down a little," Sam explains.

He puts the sniper rifle into the duffle and instead pulls out an M319 grenade launcher as well as a belt of 40mm grenades. He opens the breach and loads in a DPHE grenade and snaps it shut. Another crash slams into the door, this one was so hard that the doors buckled from whatever was trying to bash its way through.

"Go now!" Sam barks.

As the alien engineer leaves, the door explodes. From behind the smoke, walks this massive creature in blue armor armed with a massive shield mounted on one arm and a glowing green cannon on the other. Even though it was crouching down, its hulking mass nearly took up the entire doorway as it shuffled its way into the room. There were also two of them. Behind the two literal walking tanks were two squads of the grunts and jackals being led by one red armored elite and two blue colored ones.

Not even bothering to flip up the grenade sight, he fires it directly into the narrow doorway. The explosion engulfs the two squads, but the two big ones barely had a scratch on their armor. In fact, if anything, all the grenade seemed to do was piss them off. As they stand there, glaring at him, he watches as their cannons start glowing a bright, emerald green as Sam frantically loads in another round and fires. He then turns and charges into the portal.


Time: unknown,

Date: unknown,

Location: unknown,

PO2 034, Samuel,

…[]

In the middle of a busy intersection right as the lights turned green there was a bright flash and there stood two figures in the middle of the street. One of them was clearly not human and resembled a jellyfish. The other was an almost eight foot tall titan wrapped from head to toe in emerald green armor. He almost looked like some kind of futuristic combination of a knight and the book version of a starship trooper. Everyone could see that he was carrying an arsenal of some brutal looking guns with him.

Meanwhile, Sam was one moment, standing in the heart of a Covenant vessel, and now he was standing in the middle of the street of an unknown human metropolitan area. Bobs a Little on the other hand, was completely fascinated by his surroundings. Sam was more worried about finding out where they even were. From what he could tell, the city seemed to be fairly developed, though Sam did find it strange how all the buildings resembled 21st century architecture, rather backwards in his opinion. Another thing Sam noticed was that his helmet sensors were telling him that everything around him was for the most part, written in Kanji.

His motion tracker picks up movement from he right, he looks over and sees a group of officers making their way up to him. Sam watches the quartet as they make their way up to him. The group was made up of two normal duty officers who looked very on edge, and they were being led by two individuals that look drastically different from one another. The one on the left was dressed like a normal detective while the one on the right wasn't dressed anymore differently than a homeless person with a very long scarf. Sam only knew he wasn't because his clothing, though different, was neatly kept and nicely maintained. Sam figured this city's police department just had a very loose dress code for their higher ranked law enforcement members. It was debatable to Sam if they even had one at all. They come to a stop, a few yards or so from his position and the lead detective begins talking to him.

It took a second for the translating software in Sam's helmet to kick in, when it did, it translated words to simply "Who are you?"

Sam spoke slowly and clearly so no errors were made from his translation back to them.

"Petty Officer Second Class Sierra 034, UNSC Navy Special Warfare Division," he replies, it was basic, but was to the point.

"Military?" asks one of the officers, blinking in surprise.

"Sounds American," the other comments.

'Americans?' Sam thought to himself.

As far as Sam was aware, the United States as a political entity had ceased to exist decades before he was born. Though, to be fair, there are still many people who are from that region that still personally identify as "American," perhaps people from other regions on Earth still followed that tradition as well. Sam just decides to go along and nod. This seemed to calm them down somewhat, enough so that when a couple more officers showed up, they waved them off as if to say they had it handled. Though they still stayed and watched from a distance just in case.

Sam decides to ask the officers a question of his own, "Where…" he gestures to his surroundings, "Are we right now?"

Now it was the officers' turn to blink in confusion.

"Uh…Shinjuku District," one of them responds. "Tokyo."

That did not seem right. Sam's specialty wasn't in history, but he was positive that the architecture of the buildings around him hadn't been used in modern cities since the later half of the 21st Century. Sam takes another look around and notices more civilians gathered around the sidewalks, some of them even got out of their cars to see what was going on. There were also more police officers as well as those costumed individuals mixed amongst the crowd as they politely pushed themselves to the front in the attempt of reinforcing their perimeter.

In fact, it looks like quite the force had been gathered around their location in between the time Bobbs a Little's and his entrances into the portal. He looks around and even spots a Swat team that assembled behind the small, makeshift police barricade on the other side of the street. Standing in front of all the officers, were these strange individuals dressed in costumes. Sam wasn't entirely briefed on civilian cultures and traditions, and it was a full month after October so that crossed Halloween off the list. Though with the way some of those customized individuals were looking at him, Sam highly doubted they were there for some sort of festival. Some had stances that reminded him of professional fighters while others like the scarf man held auras similar to elite veteran law enforcement. Sam personally has never heard of any agency that sported such flamboyant uniforms, but there was also no way that Sam would know how civilians run their law enforcement on every planet.

"Where did you say you were from again?" the scarfed man asks.

"Classified," Sam replies quickly.

"Yeah, I figured it was," the detective sighs and says "But you have to understand our position here. A special forces soldier—"

"Sailor," one of the cops interjects.

Everyone turns to face the one officer while the scarf man shoots him an annoyed glare.

"He said he was in the navy," the cop adds, "The correct term is a sailor."

The cop then sheepishly looks away as their stairs hardened.

"Anyway," the detective continues, "You appeared in the middle of a busy intersection wearing what is clearly a suit of power armor, an entire arsenal of weapons, and some unknown creature."

The detective motions to everything he just said and to the crowd around them, emphasizing his point. He even looks up at a passing news helicopter. Sam wasn't particularly thrilled by all the attention, he made a calculated decision.

"Would you be able to take me down to your station and let me get into contact with my superiors?" he politely requests.

The two officers breathed a sigh of relief while the detective and scarfed man looked at him in surprise. Almost as if they were expecting him to put up more of a resistance. Is that a common thing for people to do here?

"Uh sir," one of the officers said to the two detectives, "He's not gonna fit in the car."

"Probably wouldn't even support the weight if he did," the other comments while eyeing the massive titanium plates.


From behind the TV, a thirteen year old, green haired boy watched in apt fascination at the news broadcast.

"If you are just tuning in now, a mysterious soldier in some kind of advanced armor and a strange creature appeared in the middle of Shibuya," the news anchor reported.

The boy quickly sweeps up a notebook and begins to rapidly scribble down anything he could pick up from the two figures. He pauses when the feed switches to a reporter on the scene. Just by looking at the armor he was already brainstorming what kind of quirk the armored figure must have.

"W-wait, something's coming!" someone cries.

The boy freezes. His eyes turn from fascination to horror as he watches a pale blue light flash followed by a group of heavily armored, saurian-like creatures appearing when the light fades. Before anyone could even blink, everything went to hell. The lead alien didn't even hesitate, took one look at the report, raised a strange blue glowing gun and fired a bolt of energy at the camera man. The teen gasps in shock as the camera crashes to the floor but continues to broadcast as the entire group of creatures immediately open fire into the crowds.


Author's Note: Alright, that is the first chapter done. Don't worry, I'm perfectly aware of the power difference between the two universes, I'll properly establish Sam's abilities over the course of the next two chapters. I wanted to use Sam in particular because I felt he was a grossly underused character. It also helps that he was only 14 when he died meaning all his potential was literally cut short. It also meant that I didn't have to try and attempt an awkward de-aging story. I learned that the hard way back when I did a RWBY story. I also am currently corresponding with TornadoDX who wrote the story A Spider's Big Four, yeah he was a huge inspiration for this story. I have enough content lined up for three more chapters, but after that, I might be in trouble because I am not too sure where I will take this story. Timeline wise, it takes place a full year before Season 1. I have an almost encyclopedic knowledge of Halo lore, but I am less versed on the MHA side, I was hoping if any of you would be willing to help me out. I will be changing some things from both universes as I'm sure many of you have already noticed. For Halo, I will be focusing more on the books and less on the games. Anyway, thanks for reading and I hope to see you all soon. Remember, Big Brother is Watching.