No way. Think about what you're looking at there. That's a woman holding what would be at least 100 lbs of weapon in an offhand position. No freaking way. There are VERY few men that could do that.
Well there appears to be a bipod so it is not offhand. And judging by her clothes and the caped avenger next to her, I would guess it is some kind of scifi convention or comiccon.