RWBY X Halo Crossover! This is my second story on this site, and considering the last one was fairly well received I figured why not branch off. Now, the beginning of this story does require you to understand my last one and it's main character. As this story is an alternative situation where something VERY different happens from what actually happened. Basically go see me last story, Chapter 11 and you'll understand. As for the rest of it, you should be good. So I'll shut up now and let you read the part you came for.

Chapter 1

A Shiny Button

I took a breath and checked our surroundings. The room was small, about the size of a mess hall. Unpacked crates were scattered across it. As well, terminals both Covenant and unknown seemed to be connected to the object in the middle of the room. It was a large circular structure. However the center of it was flowing and pulsing with this strange light blue field in it.

I pondered over the days events.

A UNSC JSOC Task Force was sent in to retrieve a package from a Covenant excavation site high in the mountains. What we found was… Indescribable. Otherworldly actually, the sleek chrome and silver structures, along with breathtaking architecture. The whole place wasn't of any UNSC or Covenant origin.

The Task Force was comprised of 18 ODST's who were now guarding the entrance to the excavation site. 12 Army Special Warfare operators, 4 ONI Ground Ops, and my team of 8 Force Recon Marines.

My name is 2nd Lieutenant Reeves. I've been serving in the Marines since I was 23 and rose through the ranks due to a lot of the chain of command in my company coming to unfortunate ends. I'm 32 now, which is considered old with how much action I've seen.

I looked back towards the device in the middle of the room. The center of the circle fluctuating violently at an alarming rate.

"The hell is this thing Sigma?" I looked towards the man in question.

Sigma is an ONI Ground Operative, as for his mission, I believe this has something to do with it.

"It's a portal LT, as for where it leads or how it works… That's what WE were sent to find out." he took a pause before pointing to one of his men. "Spectre, Wraith, starting pulling all the data you can."

His men scurried around like mice in a cage. Hooking technical instruments and devices to anything that had a hole in it.

The building began shaking uncontrollably. The portal got brighter and brighter as the fluxuations started to focus on a small funnel at the top of it pointing towards the ceiling.

A large pound of snow then fell a couple of feet in front of me suddenly.

I looked up to see that not only was snow falling from the EXTREMELY high ceiling but the ceiling itself was separating into 2 partitions.

My head shot down towards the portal only to see that a large beam of energy to shoot into the sky.

"EVERYONE FIND COVER!" Sigma hollered at the top of his voice.

I went to dive only to be piled on by snow. Pinning me to the ground in front of the portal.

I tried to move but the snow simply held me in place. I kept a cool head and continued to work my way out of it.

I felt the snow slowly begin to be removed from my body. However, as I looked back I only found that the portal was sucking not only the snow but myself as well.

I grabbed onto the nearest thing I could and held on for dear life. My BR55 that was attached to my 2-point-sling was the first to go. The portal consumed it without hesitation.

Right as I began to get a grip the worst possible thing that could happen DID happen.

A pistol from one of the guys around me had broke loose of it's holster and was hurling towards my face.

I tried to react only to be socked in the face by 2 and a half pound of metal. Even with my Gungnir helmet that was exclusive to Force Recon it knocked my off my grip and sent me sailing towards the portal. My head tucked into my chest as I tried to get ready for who know what.

The last thing I remember is a bright flash of white… Only to be met with the warm sight of red?

My head was aching, my knees were in pain, and don't even get me started on my back.

This was good.

It meant I was alive.

My eyes slowly opened as my body shot to life. I rose to my feet with, despite my bodies constant demands to stay down.

My HUD's NAVMAP was going crazy… It couldn't find me longitude, latitude, topographical data, nothing. Which meant 2 things.

This place didn't have UNSC Satellite Surveillance, and it wasn't apart of UNSC space whatsoever as nothing could be found on it.

I made a mental note to myself

'Everything is fair game. As far as I'm concerned nothing out here will make sense'

I'd been dropped into places for Recon all the time and that's the same thing I said to myself.

When in an unknown area, be ready for any surprise. Because even if it may seem strange it's apart of where you are. So adapt to it.

I scanned my environment. Normal vegetation for the most part. Oak trees with red leaves. So obviously it was fall. Grass was still green and the air still breathable. I can make this work.

I took a knee and checked my gear. Normal grey Marine BDU with light shoulder, knee, and thigh plating. My M6C SOCOM was still on my hip, at least I had a weapon. My combat knife was tucked into its sheath on my chest next to my mags. 8 BR55 mags were strewn across my torso, not normal Recon outfitting but I packed heavy.

I had one last thing to check. I threw off my backpack and went over my supplies.

Extra mags.

Water… Food

Matches and extra batteries.

Medical equipment.

The whole nine yards.

I slung my backpack onto myself once again and began searching the area for the one thing missing.

My rifle.

As Captain always said. 'A Marine without his rifle is no Marine at all, just a target.'

I searched around the clearing I had landed in. for about a solid 2 minutes I checked the grass. I nearly gave up to.

Then sitting like the beautiful thing it is, was my rifle. Knocked behind a tree.

I picked it up and checked the mag and weapon for any damage.

None.

I slung it onto my back next to my pack and walked over to the edge of the cliff I had landed near. The drop was about a solid 90 feet, give or take. I switched on my helmets enhanced vision and scanned the horizon.

Bingo!

A large city was in the distance. Lucky for me I could range the cities distance using the enhanced vision inside this tin can.

The display read 7000 meters.

7 clicks of forest and unknown terrain.

Not good odds, but I'd had worse.

I was gonna have to use my rappel line here. No way I was gonna free climb this thi-

A rustling in the bushes and a subtle growl like noise came from directly behind me.

I unslung my rifle and did a 180 into a stable crouch.

I scanned the treeline with my optic.

No movement, nothing.

I brushed it off as a wild animal and focused on the task at hand.

I pulled out a rappel line from my bag and spiked it into the ground at the top of the cliff. Making sure the remote control locking mechanism was in place. After I was sure that the line was set I descended down through the canopy below.

At the bottom I activated the mechanism which caused the line to come loose and fall in my hand. God, technology could be great sometimes.

I shouldered my rifle and began my trek through the wilderness.

About 1 hour into my march nothing had happened. Just, red trees as far as the eye could see. I knew I was on the right track because I set a goddamn waypoint at the city… Approximately.

Then I heard it.

Chatter.

As in people chatter.

They sounded young, female in origin maybe. Seemed to be about 4 maybe.

I followed the noise. Getting closer and closer to the people in question.

I turned on FLIR imaging the closer I got to see them better.

It was indeed 4. They couldn't of been over 18?

In a strange decision I decided to stalk the locals. I creeped behind bushes, using the photo-reactive camo that blended in to the environment as my advantage. The outfits they wore were interesting however.

The tallest one was a VERY well endouded blonde girl who didn't seem to like the idea that clothes were meant to COVER up your body. What was more interesting were the gauntlets on her arms. They seemed to have shotgun shells attached to the rim of them. Some sort of fashion statement maybe?

The second was the smallest one. She was wearing a white skirt and heels in the fucking woods? Her skin was white, her hair was white, hell the only part that wasn't white was the red opening at the top of her outfit and… The fucking rapier on her hip. That seemed wrong? Or am I just out of the times?

The third was a little more modest I suppose. She came in 2nd in height and was wearing a mixture of black and white on her outfit. She seemed to be wearing a type of heel-boot?

I felt slightly embarrassed at not knowing the correct terms to use when pondering what they wore. In the Marines it was BDU and boots, that was it.

She had a neat bow on her head that seemed to twitch ever so slightly from time to time. As well, she also had a… Katana on her back? I couldn't tell. All I knew for sure is that I wasn't in kansas anymore.

The final girl was easily younger than the rest. She was happily sauntering through the woods without a care in the world. If black and white was the last girls thing. Black and red was hers. She wore an impressively cute skirt with black being the main color and red highlighting it. Hell, her hair, as black as it was had red highlights.

I examined further and discovered that she was no exception to the now established pattern. Beneath the hood and cloak she wore was a small block like object. It looked like a gun, and the fact she was carrying .50 Cal BMG rounds on her hip supported that claim.

Despite them being children, they were heavily armed. I wouldn't want to get into a fight with any of them. Especially since their locals. However, if it came down to it I'd half to minimize my time in the open.

That's when 'Black' had to open her mouth.

"I think I heard something?" The group became alerted immediately, dropping into some admittedly goofy stances. Then 'Red' turned that box looking thing into a goddamn Scythe.

I moved slightly backwards. Just enough they couldn't see me.

"I see something moving behind those bushes. Might be Grimm." I had no time to ponder what a 'Grimm' was. 'Black' had good eyesight and hearing. However, so do jackals. 'She was no different' I thought to myself.

As the 4 of them closed in I could see that 'Yellow' and 'Black' took the lead as 'White' was following up behind them.

'Red' on the other hand was staying behind.

Perfect.

I double-backed and flanked to my left around the thick brush, not even snake eyes could see through this. I drew my sidearm and snuck up behind 'Red'. Maybe it wasn't the best idea to sneak up on kids with weapons, but I had to fuck with them a bit so they understood that they couldn't fuck with me. I've run into those type of locals before.

I leaned against the tree behind red, deactivated my reactive camo and whispered in a not-so-quiet tone.

"Did you find him?"

I didn't get an immediate answer. Rather, 4 startled teens now pointing lethal weapons at me.

"Who are you? And get away from my sister!" 'Yellow' was the first to answer. She blinked rapidly as I could see her eyes go from a vibrant lilac to a fiery red. What the fuck is with this chick.

"I'm nobody of importance, I simply want to be directed towards the nearest city... Which according to my HUD, is... " I tapped the side of my Gungnir helmet and pointed in the direction of the waypoint. "3 more clicks that way."

They looked towards each other with a questioning look. They didn't like me.

"You also sorta owe me considering you tried to skewer me back in those bushes."

They looked back to each other once again, disapprovingly.

This was gonna be hard.

"Jesus christ girls, I simply want a concrete answer then I'll be on my merry way back to UNSC space." Despite my conclusion that this place was not apart of the UNSC I still had to try. Maybe they knew about them, who knew.

"The UN- What?" This time 'White' spoke up with a seemingly angered tone. Drawing her weapon closer.

I raised my rifle slightly in defense. These kids were on edge.

"Look. Just point me in the direction of the nearest city please. Maybe tell me your names so I can at least identify you.

"Well… I'm Ruby. Nice to meet you!" The 'Red' girl now named Ruby. Held her hand out as a sign of peace. I reluctantly lowered my weapon and shook the young girls hand.

"Over there is Weiss, the blond one is my sister Yang, and the quiet one in all black is Blake. We're team RWBY of Beacon Academy." She looked back towards the other 3 and glared intentely.

"And we would be HAPPY to help… GUYS!" That last part was directed towards her team with murderous intent.

The girl named Yang immediately intervened at the gesture. Pushing me back towards the tree and placing herself in front of Ruby. The 3 other teammates following suit. Ruby seemed to do so reluctantly though.

"We are not telling you anything, because WE have no idea who you are." She looked towards her team before re engaging in a very heated staring contest with me.

"So I'll ask again, who are you? Who do you work for? I've never seen that type of armor used by any Kingdom." Shit. Won't take em' long to figure out I'm not from here. The last thing I needed was for this chick to reach her boiling point with suspicion.

I responded the only way I knew how.

I shouldered my rifle and visibly clicked the safety off.

"Look, I just asked for more detailed directions. Not a fight, but if you want one then I'll be happy to oblige."

The tension grew further.

Her team slowly tried to surround me, only for to be cut off with calculated pacing.

Then the timebomb that was sugartits over there went off.

She flew towards me with a pumped fist. I simply ducked under the punch and let her sail into the tree behind me. The force of the punch nearly shattered it.

I saw Blake try to throw something towards me. I sidestepped and opened fire. Hitting her with a solid 3-round-burst in the chest. I didn't like killing civilians, but I've had too before when they threatened me and my teams life. It happens.

She dropped to the ground with a loud thud, I could see her moving, however, there was no blood. Usually, 9.5x40mm ammo busted giant holes into people. I tried to not let that distract me and leveled my rifle.

Ruby launched herself back using her weapon and began laying down sniper fire from on top of a tree. As I tried to fall back Weiss and Yang reengaged and pressed the attack. I had to make a quick assessment.

Yang was a heavy hitter, obviously, but she telegraphed her strikes. In addition to that she was a short-range fighter, keeping her at a distance would keep her out of the fight from what I've seen.

At least that was what I thought before she started slinging shotgun rounds at me from her gauntlets. I decided not to question it and dove into the thick of the trees.

Reactivating my reactive camo and FLIR imaging I was hoping to re-position so I could take out there sniper.

Then Blake got up. If my helmet wasn't covering my face, my jaw would be on the dirt right now.

Yang was lighting up the spot I was last in with her shotgun blasts, leveling trees and creating small fucking craters in the ground. On the other hand, Weiss was twirling and spinning, somehow casting some type of goddamn spell, sending waves of fire towards the treeline.

Didn't matter, I had my shot on Ruby. I felt a tinge of guilt, then I remembered she tried to send a 50 through my chest… Maybe this was a good thing?

I held off my shot as I watched Blake rise from the ground. A strange field around her slightly pulsated before it appeared to settle. She seemed like she was in pain. So my rounds were still semi-effective.

"Blake are you okay? You're aura got hit hard!" Weiss was panicking. That meant they were relatively inexperienced. Because no veteran would ever panic in combat that easily.

On another note, what the hell was aura!? Was that the shield I saw protecting her? Did it act like energy shields? This has just been a very weird fucking day.

Well… It didn't matter, she was low on it, whatever "it" was. Which meant she was almost out of the fight.

"Y-Yeah… I'm fine, but those aren't standard rounds. They hit HARD."

I smirked under my helmet and settled my optics on Ruby's chest.

Sorry kiddo.

I made sure to fire 5 rounds this time.

They hit quickly and knocked her off the tree. If the bullets didn't put her out then the fall definitely will. She hit the mud below her with a hard thud, bouncing once before staying in place. She was breathing, but not getting up.

"RUBY!" She was pissed now.

"You... " Oh yeah, definitely pissed.

"YOU SON OF A BITCH!" She then proceeded to burst into flames.

Yes… She. Burst. Into. Flames.

Yang began firing at the treeline with reckless abandon, shooting up enough smoke, dust, and debris to buy me time to reposition AGAIN. She made sure every square inch of land behind the treeline got lead thrown into it.

I decided it was best to let her do her own thing and flanked hard right.

As Blake and Weiss were tending to Ruby, Yang sat in the open.

Yang was clearly losing a sense of where she was. I could exploit that. Taking out one more of her teammates or furthering the stress on her would make her more irrational. A fatal flaw.

I fired 2 rounds into Blakes side, causing her to jolt up before slumping down next to Ruby.

Weiss unexpectedly shot towards my position like a bullet from a gun. I barely dove out of the way. Losing my rifle in the process. I rolled to my feet and did the only thing that made sense at the time.

I tackled her.

We hit the ground with a thud, her silver rapier falling out of her hands. I grabbed her wrists immediately.

"Let go of me you ruffian!" She went to say something else but was met with the front of my helmet smashing against her face.

Her face scrunched up in visible pain. I grabbed the rapier that had fallen just out of her reach. Positioned my wrist on the grip so that the pommel was extended. Then wacked her over the forehead with it. Like that, she was out like a light.

Finally, we had Yang, who was still firing in 360 degrees of coverage all around her with a personal vendetta against mother-nature.

I was gonna run out of concealment soon. There was not a chance in the world I would survive an engagement in open ground.

There was also no way I risking body shots. I had to end this now.

"COME OUT AND FACE ME YOU WUSSY! I KNEW WE COULDN'T TRUST YOU" I waited, if only for a moment.

Just that single moment where the terror set in. Where she realized she was fighting something she couldn't see or hear. Her guard dropped momentarily. As she looked down towards her now unconscious friends. The paranoia hit her like a truck

She started scanning frantically, the panic and fear in her voice evident as ever.

"W-Where are you! Come out and fight!"

You see the thing about photo-reactive camo is that it doesn't make you invisible. It simply replicates the environmental patterns and colors onto your gear. So no matter where you go it could always camouflage you.

As her back turned to me I rolled a grenade down towards her feet.

Her neck shot back before the grenade went off, sending her flying towards a tree.

I left my concealed position and walked over to the bodies, checking their pulse and breathing.

"Yup, all stable."

That was a relief. Now I just had to figure out what to do with 'em.

I heard something akin to an explosion behind me.

I turned around in confusion only to see a flying blonde travelling in my direction at was presumably mach fucking 10.

Then… I blacked out.

My eyes slowly opened. A bright light was blurring my vision and making it impossible to see anything where I was.

My gear was definitely missing. My BDU pants was all that I could feel on my body. I waited patiently for my vision to clear. The lights, seemingly losing their distinct twinkle. The colors of the world coming into vision. I was in an infirmary from the looks of it.

It was a small room with a single bed and plenty of medical devices, machines, and other things hooking into who knew where. The only significant sound being the subtle, rhythmic beeping of a heart monitor. That and the indoor fans and air conditioning creating a steady hum in the room.

Ahead of my bed was a twin set of doors leading out into a hallway, to my right was a window. Looking out onto some sort of bright courtyard with long colosseum like pillars surrounding a main statue. As for the left, just a wall. A few chairs. Nothing special.

I felt my senses come back alongside with movement in my body. I attempted to move. I sat up straight and reached for the covers.

Only to find my hands had been restrained to the bed with leather straps.

Great…

A nurse walked in through the doors and stared me in my eyes. She then wrote something down onto a piece of paper and tapped something onto what looked like a phone. Afterwards, she left the room.

So I sat there… For about 30-40 minutes?

Not a peep, just the constant beeping.

When suddendly a man in a light green suit jacket and vest calmly walked through the door.

"Sorry about the wait, I was notified about your condition 37 minutes ago but had other matters to attend to." His hair was a prominent gray or silver. Alongside his… Strange wardrobe, was a green scarf hugging his neck, it had a small pin on it but I couldn't really see the details.

I simply stared at him with a neutral facial expression. This was weird.

He, in reply pushed up his glasses and placed one hand on his cane and sipped, what I assumed was coffee from his mug in the other hand.

That damn beeping seemed to get slower and slower.

"You don't need to play the quiet game with me. The team you almost completely incapacitated in Grimm infested forests explained that you were quite chatty prior to your engagement." He smirked, clearly he felt in control of the situation. Of course, he actually was but I'd rather keep him guessing.

"Well…" The man inquired

Silence was only a valid option for so long.

I gestured towards the restraints.

He, in return, nodded towards a woman I had failed to recognize behind him. She was wearing a tight, low-leg skirt with a white top. She also had a small cloak hanging down to about her lower back.

The first though in my head was 'Oh great another blonde.'

Subverting my expectations she removed the restraints quickly and proceeded to back away. Keeping her eagles glare on me at all times.

"You must excuse my associate Glynda here. The day has been rather taxing. I do apologize about the restraints, but we were uncertain what your actions may be upon waking." He paused in the middle of his sentence to finish his cup of coffee.

"I pray that they did not cause any discomfort?"

I rubbed the red streaks across my wrist and I rolled my legs out of my bed. Shaking my head.

'Might as well play along'

"Right, well I am Professor Ozpin. Headmaster to this institution. Over there would be Professor Glynda, deputy headmaster." I held my hand out towards Glynda, she simply turned her head and crossed her arms.

I closed my hand into a fist, pulling it back to my side.

I figured it was my turn to talk. I looked Ozpin dead in the eyes.

"Where's my gear?" 3 words was all I needed.

I pushed myself out of the bed and onto the floor. Beside it was my combat boots. I slipped each one on and tied them up accordingly. I was clad in nothing but my grey BDU pants and the olive drab PT shirt I wore under everything.

I straightened myself out, I stood a solid 3 inches taller than Glynda. I almost matched Ozpin in height exactly.

"Well.. Right to the point then. This way then." He waved his hand towards me.

As we left the halls and walked through what I assumed was this places campus I could actually admire some of the architecture. It wasn't tactically sound and the winding halls would be a bitch to travel in combat but they made you feel safe.

"I'm not stupid, I can see that you aren't from this world. Your weapons and gear are a testament to that. So let me explain some things about Remnant." I listened intently to what he was about to tell me. The more I know the better.

He explained everything, even recorded himself doing it, should I forget something.

The Grimm

Kingdoms

Hunters

White Fang.

Seemingly all of it in our walk. Of course it was a crash course, I could tell important details were being left out.

At some point through all the whispering and chatter of the halls we ended up in his office. He took a seat and gestured for me to take one to. I obliged

He nodded for me to talk about what I had just heard.

"Look… All of this sounds crazy to be honest. Dark creatures, animal humanoids or the Faunus as you call them. I won't question it because this day has already given me ample reason to believe it. All I care about it getting back to the UNSC." I let my posture slouch. "Sadly, I have no way of contacting them. So I'm stuck here." Ozpin then seemed to be lost in thought before speaking.

"Yes… It would seem so. Tell me, Reeves was it? What exactly is the UNSC and how are you connected to it." It was my turn to explain. So I did.

The UNSC.

The Covenant.

The War.

The Marines.

Force Recon.

I explained as much as I could without giving away intel or classified information.

As I continued on about our war I could see the shock rise on the faces of both Ozpin and Glynda. Here they were, surviving against overgrown wolves and bears. Hardly making it by where they lived and then next thing they know there is an alien threat capable of destroying planets. Even if they didn't admit it, they were scared. I was scared just talking about it.

"Oh dear… I can't possibly imagine what that's like… Losing billions by the week. The destruction. I am sorry." I shrugged it off with a polite thank you. "However, I believe we can come to an agreement. You are a highly skilled combatant, you were capable of nearly taking down one of my best teams despite only being found here hours beforehand. You also survived a Grimm infested forest, alone no less." he paused, filling his mug with more coffee. A scary amount of coffee.

"From the reports they filed after the battle, you displayed keen tactical superiority and marksmanship. Whether you like it or not, you are fit to train people, as you explained early Lieutenant." I didn't like where this is going. I probably shouldn't of told him about the whole 'I train Special Operations thing'. "Now I propose, for your training I can provide you with a place to stay within my academy, now you won't be required to go to classes as you are way above the age of enrollment. However, I do recommend that you try and study about the world around you."

It was a tempting offer.

A place to stay that had forges, weapon ranges, and plenty of other things I could utilize.

All I'd have to do is train… A bunch of teenagers… To kill…

"Professor Ozpin, with all due respect, I won't train a bunch of kids to become precise killers?" I draw the line there. Kid's always stay out of it until the last straw. In all my time I've only had to kill 1 kid. He rushed our position with a suicide vest strapped to him. Fucking Insurrectionists.

"Oh no. Sadly, my Hunter and Huntresses in training simply aren't ready for something like that. They may be eager to eviscerate the Grimm but most wouldn't dare to even think about taking a Human or Faunus life." he paused, displaying a heavily armored person with a 3D holographic. It showed what looked like a SWAT or Spec Ops unit.

"These are Vales finest. The VRT, Vale Response Team. As elite as they are… They simply haven't had the rigorous and in depth training you describe. They need someone like you to help them deal with terrorist threats such as the White Fang when needed."

This was a little better. I could work with these guys. All while keeping my own skills sharp. It also helped that I'd be able to get intel on their armed forces should the need arise.

They were wearing what looked like old operator gear form the 21st century. MICH helmets, plate carriers, and MOLLE straps.

Without missing a beat I replied

"I'm in!" I would be lying if I didn't say I was dying to work again.

Ozpin clapped his hands together and smiled a genuine smile.

"Wonderful! Now just one last matter to attend to!" Before Glynda could question the headmaster's choices, he was already at the PA mic.

"Would Team RWBY please report to my office!"

New story. I've wanted to make this for a while and I'm glad I was finally able to. Yes, some of the beginning is a tad bit rushed I will admit but I couldn't find a way to make it work without and extra chapter of build up to the teleport.

As always please leave me a review, giving me your thoughts on the story.

I'll write to you all in the next chapter.