Disclaimer: I do not own or have licensed Fallout or RWBY.

A/N: Hello! As you can probably tell, I am new to this site and the world of fan-fiction. I love the worlds of Fallout and RWBY so much that I wanted to try and find more things to indulge in. I then ran into this site, felt inspired by some of the stories, and loved the idea of crossovers. I then started to write this story and as I did, I really started liking the way it was coming out. I finally decided I'd publish it and share it. I have never written anything this complex before, nor have I written any fan-fiction, so please bear with me as I publish this (and familiarize myself with this site). Any and all comments are welcome and thank you for reading!

Kind regards,

Just another fan.

Prologue

A man stood in silence outside of his home. His eyes were closed and his head was tilted slightly towards the sky. It was early evening and just having finished dinner; the man couldn't help but enjoy the satisfaction of the delightful meal his wife prepared him. Well, for the most part. The rational part of the man's mind reminded him that it could have been much better if he actually was allowed to finish his meal and not have been interrupted by a phone call from his coworker. He frowned as he also reminded himself that it is because of the same coworker that he is now standing outside his home, waiting to be picked up and taken to the most dreadful place on this earth: work.

'Bastard' he thought. 'Greg's gonna pay for this. Severely.'

He shook the thought from his mind. Instead, he went back to enjoying the oddly warm autumn night. The wind blew lightly on his brown overcoat, as if showing its gratitude for the man's appreciation. He opened his eyes and looked at the sun as it began to set, preparing itself early for a nights rest. The man smiled. Its days like these he was glad he was alive. 'If only I could turn in myself…'

As if on cue, the man heard the sound of a loud engine and an uncomfortable, yet familiar, heat quickly covered him. He swore he thought he saw the sun frown and the wind scurry away, frightened. He looked towards the cause and immediately sympathized, for the cause made him also very angry.

"Yoooo! Smith-ay!"

A car pulled up on the curb in front of the man, its driver smiling menacingly at him. The look didn't unnerve him, however. Instead, it made him pity the guy.

The man took a step forward towards the vehicle. "Greg", he replied, "I thought I told you –."

He stopped in his tracks, gaping at the automobile in front of him. Greg seemed pleased with his reaction, shifting his body to face the man. His grin snuck up towards his earlobes.

"She's a beauty, ain't she?"

The man's gaze shifted towards Greg in disbelief. "When did you get this?"

"Just yesterday! Dumbass selling it to me gave me the deal of the century." Greg raised his palms up towards the sky, almost as if telling God that even He could be outsmarted.

The man was surprised but in no way envious. "I thought the '78 Corvega was way above your pay grade?"

"It was until about a few hours ago!"

He frowned. He thought he would be dead before he saw this poor-excuse-of-a-human-being get a raise before he did. "So, tell me again why I couldn't finish my evening with my family and spending the rest of it with you?"

Greg shrugged. "Lucky, I guess!"

"Hardly."

Greg looked suddenly serious. He reached over and opened the passenger side door. "Shut up and get in, Hank. We have work to do."

Hank expressed his agitation with a loud sigh and, although reluctantly, complied with Greg's gesture. As much as he hated the bastard, he had to admit he can be straight forward when he wants to be.

The car slithered back onto the road, picking up some speed as they headed east towards the city. A few minutes passed in silence as the two men drove towards the towering skyline. Even at this hour, traffic was bustling lively, people paced the sidewalks ritualistically, and businesses hungrily kept their doors open for commission. When they pulled up to the first red light within the city limits, Hank finally turned to his driver.

"I don't understand. After running this thing for so damn long, we finally get a breakthrough?"

Greg looked at his passenger, almost a bit annoyingly. "Don't get me wrong Hank, I'm as surprised as you are, but at this point I'm glad we did. It means we're a step closer to ending this bullshit project." Greg's light brown eyes relaxed as another thought came to mind. "Not to mention the war."

Hank looked towards the road ahead. This is true, but he could only fear what his company might try to do next.

"And you said it was an intern?"

Greg nodded. "Fresh from high school, the bastard. I swear Hank, kids these days are just outright geniuses."

"I expected the opposite."

The driver shot him a disgusted look. "What's that supposed to mean?"

Hank crossed his arms and shook his head. "Think about it, Greg. Isn't it obvious? The sudden swap to the use of nuclear energy? Not to mention its just as sudden ABUSE? I'm surprised it hasn't screwed with our biology by now."

Greg sighed. "I guess you have a point."

The light turned green. Greg crept forward and picked up some speed to keep up with traffic. Silence filled the vehicle until the duo pulled up in front of a giant building.

The two climbed out. Hank flashed his ID badge to the security guard as he walked past, heading towards the front doors. He stopped. Looking up, he took in the sight of the very building that caused the sun to frown and the wind to leave him. He felt the muscles in his forehead tense as he read the giant letters bolted into the evil gray steel: Vault-Tec.

Greg studied Hank with a certain curiosity. He knows that look, hell he's done it himself a few times. But something about the way Hank displays it on his face. It was…damn near haunting, to say the least.

"Everything okay?" He was answered with silence. "Helloo, anyone home?"

Hank looked back towards the grand double doors. Without looking at Greg, he began walking towards them.

"Let's go. I want to leave this place as soon as possible."

Hank stopped at the front counter as he usually does. He was greeted by a friendly face, one that eased him and forced him to make a sincere smile despite the place making him cringe.

"Hello Jane."

Jane kept smiling, suddenly uplifted by her boss' greeting.

"Hi Mr. Smith!"

She noticed his company, the likes of which she herself despised. Sensing her stare, Greg winked at the pretty brunette and blew a kiss her way. Jane felt her stomach churn at the sight and turned her attention to the more pleasing gentleman.

"Another unexpected shift I take it?"

Hank sighed. "It looks that way." He looked over at the man behind him. "But something tells me it may be the last."

Jane grinned. "Well that's good news. I'll prepare the usual for you." She began typing into her clunky monitor, the green screen reflecting into her tortoiseshell spectacles as it displayed the commands she entered at a rapid pace. As she was about finished, she hesitated, and redirected her attention to her handsome boss. "Shall I…prepare anything else for you Mr. Smith?"

Hank smiled. "Just call me Hank."

Jane blushed. She knew that was a yes. "Y-yes Mr.-, I mean Hank." She handed each man a key card. "I'll see you later this evening."

As Hank began striding towards a pair of steel doors, he felt Greg quicken his pace behind him.

"Whoa, whoa, WHOA!" Greg looked stunned. Hank looked at him, smirking.

"What's wrong? Commie got your tongue?"

"More like pretty brunette!" Greg studied Hank angrily. "How long has this been going on?"

Hank shrugged. "Ever since I moved into my own office, I guess."

Hank felt satisfied as he heard the weight of Greg's jaw make a crater in the ground. At least he was amusing.

"TWO YEARS?! TWO DAMN YEARS?!" Greg began pulling at his graying hair, on the verge of ripping it out by the roots. "Do you have any idea how LONG I've been trying to get her to date me?!"

Hank grunted. "Since the day you laid eyes on her."

"SINCE THE DAY I LAID EYES ON HER!" Greg seemed to have gotten most of his frustration out by now, considering he was holding his dark pointy chin, lost in thought.

"Has Marsha found out about this?"

Hank stopped dead in his tracks. He turned towards his coworker with a cold look, so cold it sent shivers down Greg's spine. Jesus, he was scary.

"No. And that will continue to be the case." He took a step towards him. "Got it?"

Greg raised his hands in surrender. "Ok, ok. I got it, alright? Can we just get to the lab?"

Hank relaxed. He nodded, and continued his way to the steel doors. A Mr. Gutsy stood guard in front, hovering a little higher as it sensed an entity approaching.

"Atten-SHUN!" it announced. The two men stopped promptly, waiting patiently for the next automated response. "Please step forward for immediate facial-scanning-recognition-procedure-protocol-process-flow!"

Hank shook his head in disbelief. He's going to have to talk to the programmers about this one. Again.

The two humans did as instructed. Promptly, the bucket of bolts began its routine, humming and beeping as its multiple arms swayed lively, its middle eye unfolding outwards towards it target. Hank noticed a small amount of rust surrounding the sensor and also noticed the same on its arm that carried a large saw blade.

"Hank Smith! Lead Scientist of the Nuclear Department!"

"Greggory Simms! Nuclear Mechanism Specialist!"

The Mr. Gutsy hovered out of the two men's way. "Welcome SIRS! Please present your key cards at the end of this hall! And PLEASE have a pleasant evening at Vault Tec!"

Hank sighed again. He wasn't making any promises.

The great silver doors slid open, revealing a large open hallway. It was empty except for another door at the end and a glass window on the left. The two moved down the hall, taking note that the blast shields were engaged and covered the window in its entirety. 'Strange', Hank thought, 'Those aren't usually necessary. Whatever that kid discovered must be dangerous.'

Hank couldn't help but being a little excited. He scowled at the emotion, seeing that it was the damned reason he got this job in the first place.

They stopped in front of the final pair of doors. In a heartbeat, a slot opened on the right hand side, glowing green to indicate it has entered stand-by mode. Hank inserted his key card, and a moment later, Greg followed suit. Satisfied, the machine glowed blue, and the doors slid open, revealing a grand chamber inside.

Scientists littered the place like mice in a shoebox, all scurrying around each other in a quickened speed. Hank's eyes widened at the scene. This place hasn't been this full since…well, since before the war started. He stepped inside, his mind already bringing up the layout of the large room. To his left, he could see the break area, the very place he spent most of his early career in. He noticed it was empty, probably for the same reason the room was filled to the brim with egg heads. He looked to his right and saw the various testing rooms he was never quite fond of. In front of him he could see the large pentagonal elevator, one that he actually didn't mind using. He still found it fascinating that there exists an elevator that can travel at incredibly high speeds, not to mention that it can also move sideways. A necessity considering the layout of the building, but unfortunately the pair will be traveling in a direction that reminded Hank's face to bring back a scowl: straight down.

Hank and Greg stepped into the elevator, turning to face the direction they came in. Greg typed a command into the prompt. One hundred and twenty five. The very last floor. When they stepped out of the elevator, about a half a minute later, they had traveled hundreds of feet into the ground. The room they stepped into was littered with monitors and computers, all being clawed away at by eager scientists. The floor was littered with crumpled paper, the walls whirred and hummed with reels of tape and hard drives, and even the ceiling had cameras dancing in different directions. Hank walked further in the room, making his way into its heart. He expected to see the device they were working on, one that would help lighten their dependency on fossil fuels and make nuclear energy more efficient. Instead, what greeted him was something far more sinister looking than his creation.

"Greg…" He found him looking at a monitor, studying the different equations it displayed.

"I know." He walked over to him. It was now that Hank noticed his curly brown hair was rustled, as if he got out of bed just a minute ago. Greg's brow wrinkled as he stepped towards his supervisor. "Braun's team was here this morning."

Hank cringed at the sound of the name. "Braun?! What the hell was he doing here?!"

"According to him, and I quote, 'making minor improvements'."

Hank turned his attention to the instrument. It wasn't at all the mini reactor he had left behind just the day before. Instead, in its place was what looked like half of an oval, made out of Vault Tec's signature evil looking metal. What was strange to him was that it looked…incomplete. Even to Braun's standards. It was about seven feet tall, and only the left half of what looked like the frame of an egg was there. Cables frayed from its base like roots of a rotten tree, all connecting to the machines that were designed for his original creation.

'My ass.'

He looked back at his coworker. He had an accusing look in his eyes that made Greg shiver. "You knew about this?"

Greg gulped loudly. "Yes, I did. But they made me keep my mouth shut until you arrived tonight. It was supposed to be…a surprise?"

Hank scowled. "Bullshit. Braun's just an asshole." He looked at the machine. "This doesn't make sense. If he needs my machine to power his, then why did he take it out?"

"Well, it's not the machine. It's the technique. The breakthrough." Hank ran his fingers through his black hair.

'Years of research and hard work. All thrown into the garbage bin just because the bigger kid wanted the smaller puzzle piece in the center of it.'

Hank noticed a small young man at the center monitor in front of the mysterious arc. He walked towards him, hearing his confused mumbles and grumbles as he tried to find something hidden within the green letters. Greg was a step behind him. "That's him."

Hank looked over his shoulder. "THAT scrawny bastard?"

Greg nodded. Hank was disappointed, to say the least. He tapped the young man on the shoulder.

Hank had seen a lot of strange things in his life, but this one just might take the cake. The young man jumped at least six feet in the air, completely caught off guard. A handful of Fancy Lad's Snack Cakes jumped out of his pockets and rained like a blessing from the fat gods onto the unsuspecting scientists. After knocking everything on the desk over, he turned to meet the man behind him. Hank couldn't help but stagger backwards.

"W-w-hat?! O-oh.." The scrawny red haired kid pushed his glasses back up onto the bridge of his nose. He noticed Hank's badge on his left breast. "S-sorry sir. Eric Goldstein."

Hank gave the tiny blonde a strange look. "Hank Smith."

The pale kid looked astonished. "D-Dr. Smith! A p-pleasure sir! It's an honor!"

He held out a hand, which Hank shook quite strongly. Eric winced. A smirk crept its way onto Hanks face.

"I don't mean to interrupt, gentlemen, but we have work to do." A middle aged woman had walked up to the two men, holding out lab coats for the each of them. "And the two of you should know better than to walk in here without proper attire. Damn it, Goldstein! Clean this shit up!"

As the two men accepted their coats, Eric scrambled to pick up his junk food. "Y-yes Ma'am!"

Greg grinned at the lady. "Why thank you Ms. Terry." He gave her an exaggerated wink. "I really-".

The woman already started walking away. This made him angry.

"Damn it! I hate it when they do that."

"Can't say I blame 'em, lady killer." Hank smirked, shaking of his brown coat and replacing it with the one he was handed. He turned to Eric, a serious look on his face. "Fill me in, kid. What the hell happened to my project?"

Eric flinched at the sudden change in tone, but responded in kind. Pushing his rounded glasses back in place again, he looked at his clip board and began his debriefing.

Hank didn't like what he heard. So far, Dr. Braun had received word that this little runt discovered a way to channel the small amount of nuclear energy his machine made and multiply it without the dangerous side effects. He brought his team to his facility, HIS facility, and replaced his machine with some sort of device that would allow them to travel to an adjacent country. What made him angrier was that all of this happened practically overnight.

"So what you're telling me is that your little discovery has enough power to activate a damn portal?"

Eric snickered. "Pretty much. Please keep in mind that this is just a theory. That theory tells us that this multiplication process allows us to harness enough energy to power the entire planet for ten years, all in the matter of seconds, and without the dangerous side effects of highly concentrated radiation." He looked at Hank, grinning at his own genius. "What do you think sir?"

"I think you just destroyed the damn world."

Eric winced at his unexpected reaction. "W-what do you mean?"

Hank sighed. "Don't worry about it. When do we begin?"

Greg was ready to answer. "In about fifteen seconds."

Eric began writing in his clip board. "Right….um, what's todays date?"

Hank looked at his watch. "The twenty third."

Eric scribbled quickly, almost as if in fear of forgetting the date. He hesitated.

"Of October."

He wrote this down in relief.

Hank shot Greg an angry look. "Where'd you get this guy?"

Greg shrugged, turning his attention back to his monitor. "Let's get this show on the road. Everyone, take your positions."

All the egg heads in the chamber complied. Hank simply stayed where he was, considering he practically didn't have anything to do with this. He watched as the frame began to make a humming sound. The strange shape began to glow a bright yellow, and it actually began to move. Slowly, the half oval shape began to revolve in a counter-clockwise motion, picking up speed as it began to glow brighter. It was…strangely beautiful.

"Lock down the facility and seal the doors. We're gonna need some privacy!" Hank was not at all amused at Greg's little comment, but he could hear him snickering to himself. Jackass. He heard all the doors shut behind him, and the familiar clicking sound of the lock mechanism activating throughout the concrete room. The chamber glowed with the familiar warmth of the nuclear-powered device. The frame turned into a bright egg shaped mass.

"We don't have enough power. Goldstein?"

Eric typed a command. "Increasing power interval by twenty five percent."

The egg glowed brighter, but the greedy scientists were not satisfied.

"Fifty percent!"

There was a moment of hesitation in the chamber. Everyone stopped, looking up at the ceiling. Hank looked up too, dead silent. What was that sound? Did the machine make it? No, it couldn't have been. That was the sound of something distinct, the sound of every human beings nightmare. That was the sound of…

Sirens.

Everyone looked towards Hank in disbelief. He was confused, frightened. There was no way, it had to be something else. The egg in the center of the room hummed impatiently, annoyed that it was being neglected.

Then, all hell broke loose.

The scientists stampeded towards the exit, all yelling and trying to get out. They were shouting, screaming, pushing each other out of the way, trying to reach the elevator and join their families on the surface. Hank looked at them in disbelief, fear, and disappointment. There truly was no way out, not with the lock down protocols in place. He was astonished at their stupidity. Do they not realize how safe they are this deep underground?

Behind the large scared crowd, a loud hissing could be heard growing louder and louder. Hank looked over at the egg. It was spinning angrily, trying to get the attention of its creators. It began to rock violently like a spinning top that was left unattended. 'Well, maybe not so safe after all.'

Eric felt Hank's concern and sprinted back to his station. Greg turned to face the crow to try and calm them down.

"Everyone! We can't just leave this device unattended! It will lose control should we neglect it!"

No one listened. They were all trying to get out. The air raid sirens grew louder and louder, almost as if they were attached to the danger that was on its way. Realizing his attempt was futile, he joined the only two sane people in trying to keep the death top under control.

"I can't turn the power down! It's locked at an increasing rate of power injection! I can't stop it!" Eric was typing furiously into his keyboard, trying to prove himself wrong, only to be met with a painful truth.

"She's gonna blow!"

Before the others could react, an explosion of yellow energy emitted from the top, followed by a blinding flash. Hank was propelled backwards towards the crowd, which had been crushed against the silver doors.

Hank lay on his back. He couldn't hear the sirens anymore. Instead, they were replaced with a loud ringing and he could feel a warm thick liquid drooping out of his ears. He tilted his head to his right. He saw Eric's mangled corpse, his cold eyes looking right into his as if screaming for help. His frames remained on his nose, and Hank realized that the glass in his spectacles had shattered from the explosion and the shards had lodged themselves into his sockets.

Hank felt the fear climb through his soul, taking over every inch of his being. He tried to stand, but realized he had no control over his body anymore. He felt the chamber shake violently, and a huge impact sent him flying through the chamber, landing him on the opposite side. He saw bodies flying everywhere. Every single person was dead. Even Greg, the damn snake of his department, was lying on top of one of the massive hard drives, his spine snapped in two.

He looked at where the top used to be. That was when he noticed it had stopped spinning, that the frame had disappeared and was replaced by…what looked like a painting. A painting of the most beautiful scene he has ever witnessed. He swore he felt the wind return on his skin, and the sun had returned to smile on him once again. Both joined by what looked like a forest, with leaves as red as the blood that covered the room, its bright green grass holding on to the fallen leaves as if it were afraid to let go. More leaves were falling from the endless amount of trees, one even found its way onto Hanks chest. The lively painting began to fade, just as Hank began to realize that he was losing his senses in his body. He couldn't fight the feeling of himself slipping away. He looked at the leaf that had landed on him, and finally relaxed his head on the cold concrete floor, closing his eyes and letting out one final smile.

'So that's what heaven looks like.'