Out of Time

Riley is an army brat, her father was a Corporal first class, her role model. She plays video games when she isn't working. Her favorites are made by a gaming company known as Bioware. Today had been just like any other, the difference being that when she woke up she wasn't home anymore. Flashes of white light, and what may well have been her end in her original world was not. She was someplace new, someplace advanced and familiar at the same time.
Commander Shepard and her diverse crew of aliens and humans alike stumble upon a Cerberus base and discover a red haired, bright green eyed marine. The girl looked confused, lost, and a few centuries out of date. Her old marine uniform hasn't been worn in a little over one hundred and twenty years. Yet seeing a Turian and a Quarian coming into the room, she faints. The base is rigged to explode and Shepard isn't one to leave a fellow soldier behind, no matter what century they looked like they dropped out of.