This is by far not as perfect as it should be, but I've learnt from this and will now be starting on a better version (to me that is anyway), one that revolves mostly around Carla. There will be changes to the games storyline, with most things cut from it. But I'm hoping it will be a lot better than this.

It had been no easy task for Ada to escape the underground facility after being thrown into one of the large metal machines by none other than a Tyrant of all things. Though she had sent it to the furnace below. The damage she'd taken from the hit was quite the miracle she'd survived, having worn nothing but a thin red dress. Leon had been quick to her side, kneeling down he cradled her in his arms. She'd already told him she was incapable of loving anyone, but he'd changed her.

The two shared a kiss before she finally succumb to her injures and passed out. Leon thinking she was dead, laid her on the metal walkway, having to get to Sherry and Claire who were ready and waiting on the train.

Upon waking she'd managed to pull herself to her feet, the Tyrant from before had now mutated and was now looking for its next victim. That victim being Leon. Grabbing a rocket launcher she called out to Leon and threw it down to him.

"Ada!" he called out one last time as she disappeared from view.

That was the very last time she'd seen him. Now as she looked herself in the mirror, she couldn't help but think.

"I used to be called Ada Wong," she thought to herself as she looked in the mirror. "But I'm just not her anymore."

Her hand came to rest on her ab, seeing the ugly looking scar there.

"This is Ada's scar not mine," at this she looks back up to see the tears forming in her eyes.

She felt helpless as there was no stopping them, leaning against the mirror she couldn't help but let it all out. Maybe it was for the best to let Ada Wong go, but then there was Leon. Part of her wished she'd never even met him, not to mention getting close to him.

Once she'd pulled herself together, she freshened herself up, slipped on a top and headed out for her next mission.

"Ada Wong?" a man called her up.

She flinched at the mention of her old name, the name she'd hoped to put to rest.

"That's me," she instead decided on allowing the name to stay.

"I have heard great things about you, Miss Wong. You're in high demand, I'm surprised I could get hold of you."

"Then you'll know my services don't come cheap," she reminded him.

"Oh, you have no need to worry over that small detail." He chuckled lightly.

"Then let's talk business," she went on.

It would seem as soon as he'd gotten what he was after, he just wasn't done with her. Sending her off on small missions to retrieve this and that, and in all honesty Ada didn't mind as her bank account was fairing quite nicely with it.

"Would you allow me to take you to dinner sometime?" he asked.

"I don't suppose why not," she smiled warmly at him.

First it was a meal, then a few gifts and such which she really wasn't interested in.

"I think we'd make a fantastic couple," he thought one night as she stayed to watch a late night film with him. "Just think if I had complete control over this..."

"Don't you think you're setting the bar too high," she frowned. "I never really agreed to us."

"But Ada?" he furrowed his brows at her.

"Sorry, Derek. I just don't feel the need to settle down, and really the whole taking charge thing is not on my list of things to achieve anytime soon."

"Just think of the opportunities," he tried to persuade her.

She stood to head out, slipping on her coat as she headed for the door.

"What can I say to change your mind?"

"You won't change my mind," she told him with a shake of her head. "Goodbye, Derek."

"Ada!"

She left him that night, not knowing what this would actually cause the man to do in the future that would end up dragging her very name down.

"Carla," he now turned his attention on the young blonde woman.

"Yes, sir?" she turned to him.

"Carry on perfecting the C-virus, and while you're at it make a start on a new project. Project Ada!"

"Yes, Derek."

In that moment she felt any chance of her getting with him go down the drain. No matter though, she would work on his little project and maybe, just maybe he would shower her with more than just praise.

"I'll get right on it," she nodded.

"Good," he smiled as he turned to leave her to her work.

xXx

"Bring me more test subjects!" Carla ordered to those working under her.

Simmons had high hopes in her and she'd be damned if she didn't get this to work for him.

"Yes, Dr Radames."

Carla sorted out the virus while the others brought in another subject for her. Once she was brought forth, Carla advanced on her.

"Why are you doing this?" the woman sniffled.

Carla ignored her as she injected the woman.

"What are you doing?" she screamed as the scientists now let go of her.

She tried to stand, but found herself falling to her knees as pain flooded her body.

"Why?" she asked again.

"It's for the benefit of..."

Simmons now entered the room, cutting her short.

"How are things progressing?" he asked.

"It's still in its early stages," she informed him as the woman screamed to then burst into flames.

Simmons looked to her as if expecting more for her, and Carla knew it. Soon the flames died down and the woman started to cocoon from the very slimy substance that expelled itself from her body. Simmons placed a hand on Carla's shoulder in anticipation. Only once the cocoon started to crack open the thing inside dropped out onto the floor.

"A failure," he sighed heavily, looking to the grotesque mess that was once a woman. "Clean this up."

"Yes, sir."

The scientists got to work on clearing up the mess as Simmons headed out, followed closely by Carla.

"I know I can do this, please don't be disappointed in me."

He turned to her, a smile on his face.

"I have my upmost faith in you."

"Thank you," she smiled, ignoring the screams in the room they'd just exited from.

Simmons turned to his men, gesturing them over.

"Deal with that disturbance," he lazily ordered to them.

The men nodded before entering the room to make sure the job was done properly, and by that it meant they went in guns blazing.

"I will make this work, I swear." Carla vowed to herself as Simmons walked off down the hall. "Then I know for sure you'll want me over her."

She turned around just as Simmons' men were now exiting with the fallen bodies of the unfortunate scientist and a large bag which held the failed Ada in it.

"Bring in another subject," she ordered once again.

Another and another were brought in, one after the other all still resulting in failure.

"Carla, get back to work on the B.O.W.s." Simmons now ordered to her. "I think it's time we start preparing."

"Yes, Derek." She nodded, a little annoyed that she wouldn't be working on the project as much as she used to.

xXx

It was now his turn to become frustrated as each and every passing day still brought the same results, failure.

"Why isn't this working?" he glowered.

"Dr Radames has sent you another formula," one of the men informed him.

"Get to work on perfecting it then!" he snapped.

"Yes, sir. Right away."

They spent hours poring over the data Carla had sent them, trying all sorts to perfect it. In the end they just had to give up to try again another day. Carla on the other hand was making some very good progress in the B.O.W. aspect of things, but still things were in need of a major upgrade.

"What am I missing?" he thought as he sat back in his chair.

The sound of laughter from outside caught his attention, heaving himself up from his chair he walked over to the window to see Sherry and Claire playing in the large grounds.

"I found you!" Claire smiled as she grabbed hold of the younger girl to start tickling her.

"Ha ha, stop it!" Sherry giggled.

"Sherry Birkin, the one who survived her father's infection." He thought to himself. "Why hadn't I seen this from the start?"

He watched the pair play for a little longer, knowing that Claire would have to leave her sometime soon giving him the chance to talk with the young blonde. Heading back to his desk, he made a call to Carla.

"Carla!"

"Yes, Derek?" she answered.

"I don't believe Sherry has been checked over for any trace of the G-virus."

"We know for sure that she was given the vaccine by Claire Redfield, but no one has done much on her at the moment."

"I'll get her in for testing, I need you to check her blood. If she does show signs of having the virus, would there be a chance of combining it with the C-virus?"

"If she has traces, yes." Carla acknowledged. "But we won't be working with the full dose."

"I'll have her brought in right away, get ready to process the results. I need this project to work, Carla."

"I know, Derek, I'll get it done."

"See that you do," he warned her.

Carla cut the connection rather annoyed with him.

"What's your obsession with this woman?" she thought angrily as she looked to her computer to look over the data that would soon be sent over.

"I'd better report this to Derek," she now thought to herself as she turned to call him up.

Simmons lazily reached for his phone to answer the incoming call.

"What is it?" he asked.

"I'm done with the tests on Sherry's blood," Carla went on to tell him.

"And?"

"It seems the G-virus has bonded with her on a grand level."

"Go on," he encouraged her on.

"If she were to sustain an injury whether it be a paper cut or deep gash, she would instantly heal without any form of tumour growth."

"I see," he thought rather amused. "But the question still stands, what would it do if combined with the C-virus?"

"I'm doing tests on it as we speak," she told him.

"Alright, I'll leave you to your work."

xXx

"Ready me the next subject," Simmons ordered one day after relieving Carla of her work load once again.

"Right away, sir."

Another young woman was brought forth, kicking and screaming. Simmons was quick to put an end to it all with a needle.

"Ready the camera, I know for sure this is the one." He thought hopeful.

The thing that escaped the cocoon, however, was not what he was expecting at all.

"No! Why won't this work?" he glowered.

He headed for the nearest computer, going through all the data files and such until a picture of Carla caught his eye. Without thinking, he opened up her file and looked through it.

"Yes," he thought with a devilish smile. "Yes, she could work."

He turned from the computer to grab one of the scientists attention.

"Bring me Carla," he ordered. "She's the best match we have for this."

The man nodded.

"Be very careful what you say around her, I don't want her catching on."

The man nodded again, this time a little more nervously as he now had to think of something to say that wouldn't give the game away about what Simmons had in store for her.

oOo

Once Carla had been brought down to him, Simmons wasted no time jabbing the needle into her neck. Something which she now cried out at.

"Why Derek?" she asked in obvious pain as the virus took hold.

"Because you're precious to me," he told her before she burst into flames to later leak the same ooze as the others to then cocoon.