Welcome! This is my second Resident Evil fan fiction to date. I don't own Resident Evil, or any of its characters etc.

I'd like to apologize in advance for any grammatical mistakes. I'd also like to apologize for any mistakes concerning the Resident Evil plot, I've researched it and played most of the game but still... I sincerely hope you enjoy this. If you think the story could go somewhere please review! Constructive criticism, reviews are what motivate me to write.

Thank you!

Resident Evil: AUCOS

And the wheels just keep on turning
The drummer begins to drum
I don't know which way I'm going
I don't know which way I've come

Kingdome Come: Coldplay

Prologue: Betrayal and Trust: 2004

Ada gently placed the small vial in a safe padded box, clipping the lid shut she picked it up. In the distance she could still hear the whir of the helicopter that had dropped her here. Wesker was leaving to meet with the organization, ready to deliver the precious sample; little did he know that he didn't have the real thing. Ada was also betraying the company she worked for, unsure of their true intentions she felt her safest option was to go to AUCOS (Anti Umbrella Covert Operations Squad). The team set up by the survivors of the racoon city incident, the team that had shut down Umbrella and were trying to destroy any other similar companies before anything disastrous happened. Looking up at the sky she saw dawn was just reaching America where as it had nearly been nightfall in Spain. No doubt Leon and Lilia would be surprised to see her, after writing her off as a traitor to their cause.Brushing a piece of dirt off her signature red dress she sighed, right now she wanted to sleep, but something this urgent could not wait. She wasn't far from AUCOS's headquarters, it was well hidden but Ada doubted it would prove difficult for her to find it.

"Ada?" Leon asked, he'd just been dropped off by the military copter that had picked him and Ashley up as soon as they'd reached civilisation. She came walking into the office as if she owned it, looking perfectly well groomed as usual. The only sign they'd both just faced a life threatening scenario were the dark circles under her cat like eyes. Without speaking she carefully placed the case on the desk and unclipped the box. When Leon saw the sample safely nestled inside his eyes widened in surprise, furrowing his brow he looked up at Ada.

"Why?" He asked, Ada frowned as she searched for an answer.

"I'll explain it to you later, first we get this thing somewhere safe" Ada said "All I can say is that you were the only person I knew I could trust"

"Ok" said Leon nodding furiously "Lets do this"

Chapter One: The Flashback: 1999

Outside it was a beautiful summer's night, it was nearing the early hours of the morning and the sky was slowly turning from the darkest black to a deep blue. Lilia was sleeping peacefully when she heard a crash from downstairs. She lived by herself; she had since she could afford her own house. However it was times like these she wished she has a nice butch boyfriend to hide behind. Shaking her head dark brown hair fell in her eyes. Reaching down the side of her bed she pulled out a metal pole, it had seemed as if would be an adequate weapon at the time of hiding it, but now it looked pretty futile.

"Come on" Lilia urged herself, swinging her legs out of bed she crossed her bedroom and walked down the stairs to the kitchen, where the sound had come from. "Hello?" She called.

"Get her!" Shouted a male voice, squinting Lilia could just about make out several figures dressed in black "She's not infected,"

"Perfect" Said a cold female voice "I'm sure she'll make an excellent subject"

"What?" Lilia said frowning, one of the men grabbed her by the arm, she managed to twist free and hit him in the face. She might not have her butch boyfriend but she was trained in the art of ju jitsu, if a yellow belt counted. Backing away from her first assailant she was ready to take them all on rather than become a "Subject" of the woman. However she didn't have the opportunity to fight as the very same woman plunged a needle into her neck. Lilia felt a strange sensation as every fibre of her body relaxed, she felt herself drifting off into sleep.

"We found about ten survivors in the village, the rest were infected," Said a harsh voice, Lilia was surprised to find herself very much awake. Yet every part of her body ached and she felt as if she'd been asleep for days. "Thisfemale is the only subject to react positively to the injections"

"So you think it's time to try the new virus?" Lilia's eyes flickered open at the voice of the woman who had injected her. Lilia looked around the room; she was in some sort of cell, able to move but trapped all the same. The only lighting came from a harsh light in the centre of the cold clinical room.

"I'm not an animal for Christ sakes" She shouted as she walked to the bars, shaking them angrily. She could see the two people who had been talking. The previously anonymous woman appeared to be in her late thirties, with perfectly coiffed brown hair, the man was older and appeared exhausted. Both however were dressed in lab coats. To Lilia it still seemed very much like a dream. A moment ago she'd been in her room, in her house. Now she was their prisoner..

"It seems you've woken up after all" said the woman walking over to the cell, she regarded Lilia with cold green eyes, scanning her as if she was some sort of rare specimen she'd found. "You are a special one"

"What's going on?" Lilia whimpered, she felt little of the fight she had before, she was desperate to know what had happened and when she would be free.

"It's a long story" Snapped the woman "All you need to know is you're here now"

"And where exactly is here?" Asked Lilia tiredly.

"Umbrella labs my dear, we brought you here from England, you've been with us a couple of weeks now, and you've responded most perfectly" Said the man, his eyes were equally as cold as the woman's. In his hand he held a syringe. She backed away from the bars at the sight.

"What happened to everyone?" asked Lilia quietly, thankfully her parents had been out of town, but she had many friends in her little village.

"Well, Umbrella had a small laboratory in you're village, you may have heard of the Racoon City outbreak, that was the result of one of our little mishaps as well" The man began.

"Mishaps?" Scoffed Lilia "Thousands died in Racoon City"

"They did" said the woman "But we gathered some amazing combat data on the BOW's" A cold smile highlighted her sharp features. To Lilia she looked as if she was cut from glass, so perfect and so cold. "Now if you'd let us finish"

"Well there was an outbreak, the virus leaked into you're town, turning most inhabitants into something rather less than human," Said the male scientist "Of course we barricaded the town and had it destroyed, not before gathering some of the survivors, you being one of them. We couldn't waste the chance of getting human test subjects"

"No of course not" Muttered Lilia still taking in the information, she thought the rumours circulating about Zombies and Umbrella being involved in Racoon city had been false. But now it seemed they were very much true and the same thing had happened to her village. Shutting her eyes she waited for tears that didn't fall, instead her sadness was replaced by anger.

"Now, the rest of those we kidnapped responded badly, and are now nothing more than weapons similar to the others in our possessions" Said the female, Lilia looked at her jacket and saw from the nametag her name was Genevieve Sarin. "I and Terrence are both top researchers here at Umbrellas headquarters, we believe its time to inject you with a pure strain of a certain virus, similar to that Albert Wesker injected himself with when he decided to betray us" Dr Sarin explained "Now it is you're turn, Lilia"

Terrence moved forward and pulling a key card from his chest pocket he unlocked the cell door. Dr Sarin went in first and grabbed Lilia by the arm, Lilia was almost naked apart from a pathetic hospital robe. Trying to resist she was surprised at the strength of the Doctor. Terrence raised the syringe and plunged the needle into the vein in her arm. Lilia cried out in pain and fell to the ground, curling in a ball she felt the immediate affects of the injection. She felt the cells inside her begin to die, but then she felt something besides pain, she stopped mutating into a monster and her body began embracing the virus. Her very own cells combined with the virus, she felt the process happening inside. Her body accepting the foreign intruder, Lilia was being reborn as something else.

"What the hell?" Cried Dr Sarin, Lilia had first started to mutate, her arms and legs swelling with the virus building up inside her. But then the process had stopped, Lilia had become human again, all visible signs of the virus disappeared. Lilia had a small smile on her beautiful face, when she opened her eyes there was a hint of purple in their once bright blue depths. Lilia slowly got up from the floor of the lab and stared directly at the doctors who had taken her, experimented on her and her friends and had been part of the destruction of her entire lifestyle. Dr Sarin watched as she walked to the cell door, she smiled as she knew it was locked. This didn't stop Lilia however, with one hand she ripped the metal bars aside. Those bars had been meant to contain something even stronger than a tyrant. Instead of creating another Albert Wesker, or a controllable mutant, they had created something completely new, with the emotions of a human and the free will. They had created something that would come back to haunt them in the future.

Lilia left the labs and joined AUCOS with Leon Kennedy and other survivors of the Racoon City incident. They knew that she had seen an outbreak on a smaller scale but had no idea of the experimentation she had suffered at the hands of Umbrella Corporation. What AUCOS knew was she was strong, hardworking and a valuable member. She flew up in their ranks to become one of the senior members. She led many missions to destroy old Umbrella labs; she was also currently playing a vital part in shutting down other companies like The Organization Wesker was now working with. Lilia was happy in destroying those who had destroyed the old her, she was happy when Umbrella were revealed to the public, the pharmacutical company were ruined in a matter of days. Lilia hoped the two scientists had been ruined along with it.