Welcome to my first fanfiction :) I've written this to be just before age of Ultron, and eventually it might continue into it depending on how I want to take it. Also, I am not fluent or study Russian language, so forgive my use of google translate if it is incorrect. This can be considered an eventual Steve x Reader but I've made it so the beginning of the story is more of an introduction of 'the reader' i.e. you XD I hope you enjoy reading :)

04:23am

Kolyma, Russia

HYDRA Genetic Engineering Research Facility

Vapour left the mouth of Captain America as he knelt in the snow, hidden of sight by the bushes and tall trees surrounding the facility in front of him and the team behind him, minus Bruce who stayed with the quinjet a mile away in a clearing. Natasha followed Steve's action of hiding and knelt to Steve's right, quickly focusing her attention onto the hologram projecting from her gear, visualising the layout of the building in front of them. Tony, Thor and Clint lingered behind them, stepping quietly and laying low.

"What do you think, Nat?" Steve question whilst taking note of the process in front of him. Three guards were standing close to the loading bay, armed with rifles whilst two others transported large crates labelled with radioactive symbols from a military grade truck into the facility. Spotlights surveyed the clearing in front of them, causing the team to lower their heads slightly each time it passed their hiding spot.

"Well, according to this, there is vents but they're grated with tungsten, hard stuff to bust through. You could melt it, but even then, it'd take a while and with the patrol around the facility I wouldn't risk it."

Steve nodded, whilst shouting from in front of him brought to his attention the truck was now leaving, and the three guards resumed to their spots close to the gates. "Any other entry points?"

Nat nodded, and then looked ahead to the loading bay. Thor stepped forward and placed a hand on Steve's shoulder as he spoke. "Then let us begin, we must act quickly if the dangers within those walls are as we fear."

Tony's faceplate on his suit shut as he walked closer to the group, a blue hue emanating from the eyes of his mask. "What Pointbreak said, just get rid of the three stooges over there and boom, showtime."

Hawkeye stood in front of Tony's path at this point with a small scowl in his forehead. "We can't just go in all gun's blazing. You know what the mission is; incognito." Natasha stood and joined Clint with a hologram of Fury projecting from her gear on her wrist. The image plays as it replays the debrief a few hours before.

"Avengers, the power readings of this area have been off the chart the past 2 months. We've also been keeping an eye on transports to this particular facility, and our readings show that 8 of them just this month have had levels of radioactivity in the cargo. The mission is to break into the building unseen, and establish what these guys are doing with all these resources. Report back and further action will be deliberated dependant on your findings. Violence is a last resort, I don't want the Russian Government asking me questions about fireworks. Good luck."

Steve joined the circle to formulate a plan of action with the team. "We need to be clever with this. Clint, you take out those spotlights. Nat and I will take care of the patrol. Tony, Thor, you take care of-"

Steve was cut off when the bright white of the spotlights changed to a deep red, and a loud alarm emanated from the building.

"They saw us already?" Clint asked in confusion, readying his bow as he, Tony and Thor started walking to take care of the guards. "Wait."

Steve's voice halted them in their movements, and they all turned to face him with confusion. He looked at the three guards in front of the loading bay. At the sound of the alarm they looked at each other in confusion, while one of them were shouting into a walkie talkie. He couldn't make out most of the conversation as they spoke in Russian, though he did hear what sounded like "zyats" repeated a lot. They readied their guns and ran…towards the building. Natasha was watching also, and had a confused expression on her face. Steve turned to her, and asked what they were saying.

"An intruder's broke into the cells."

"Wait, what? Cells? And hey, there was an early bird? How'd they beat us to the pickings? Who is it?" Tony fired off questions, as his mask was opened again and his face held a disordered expression.

Steve looked forward again as the patrol and even more soldiers ran into the building with more, bigger guns and weapons. Shock sticks and even shields were being moved with more people into the building in a hurry, shouting and big crashes coming from inside the facility.

"Whoever it is, they're causing a lot of trouble for them." Clint spoke thoughtfully.

Steve nodded at this and stood, starting to make a brisk walk to the loading bay. "Avengers, move in. The plan of attack, is to attack. Take care of HYDRA's soldiers and whoever this newcomer is."

The team moved in Tony taking to the skies and Thor flying forward with Mjolnir towards a group of 5 who had started to notice the avenger's presence. Nat and Clint ran along with Steve, Nat exclaiming as they ran.

"We got a group coming in" Clint brought attention to the jeeps heading their way carrying 6 soldiers per vehicle. 4 jeeps rolled in, men jumping out and training their laser sights onto the avengers as Tony and Thor joined them. Steve grabbed his shield off of his back, Clint readied his bow, Natasha launchers her shock sticks, Tony raised his hand and Thor raised Mjolnir. "Let's go."

BANG

A loud crash sounded behind the team, causing them all to slowly turn around after they noticed the soldiers in front of them tense and adjust their aim to behind them. The fortified solid steel door behind them had a bulging dent at the centre.

BANG

The dent grew bigger, screws and bolts flew from the panel while the group of soldiers behind them gasped and squabbled at the noise. Something is trying to get out. Steve told this to the team as he instructed them to turn slightly and readied their weapons for either direction.

"Заяц!" one of them shouted, recognising the word from earlier, Steve looked to Natasha who wore a confused expression as she translated unsteadily. "The hare?"

CRASH!

The whole frame of the fortified gate flew forward, landing a few feet from the avengers. Shards of scrap metal shot forward and smoke drifted out from the now open door, creating a haunting glow from the red blaring alarms still being run in the building. Lines of red aimed forward towards the door, as HYDRA reinforcements shouted orders and a line of soldiers formed raising their rifles, shields and shock web launchers.

Captain America fully turned towards the door, eyeing a shadow moving through the smoke, the red lights flashing across the silhouette. The figure walked closer, until it walked slowly out from the facility, smoke floating around them as they moved.

The newcomer wore mid-calf brown combat boots, with rolled denim jeans leading up to a light blue blanket embroidered with silver leaves and flowers tied around their hips. With this is an army grade utility belt, with leather pockets and straps going over their broad shoulders. Their midriff is covered with a corset style armour made of thick leather, leading up to a pale-yellow ribbed jumper rolled to the sleeves. In their (Right/left) hand is a broad axe, a wooden handle wrapped in strips of black leather leading to an unscathed extremely sharp head. Their belt has 4 smaller hatchets, more worn from use than the axe, 2 looped onto each side of their waist. However, the main feature of this newcomer was their face…concealed by a wooden and chipped mask with a black veil at the back of their head.

The mask of a hare.

A shout of "Пожар!" was followed by intense gun fire.

Заяц - The hare

Пожар! - Fire!

I've taken inspiration from the character, 'the Huntress' from the game Dead by Daylight for the 'reader's' character design, and I obviously don't own the character or the game. Here's an image but try to imagine it more, friendly I guess and minus the blood XD, I have made a few changes here and there and have thought of my own story for the character. Here's a link to a picture of 'the Huntress': .

I hope you enjoyed the opening chapter to this story, reviews and constructive criticism is welcomed :)