If you like it, it's a good game. Being and girl or a boy has nothing to with it. Just because MOSTLY boys like a game doesn't mean that it's peculiar for a girl to like it. So . . . if you like it, it's a good game.
Not to burst your bubble, but a lot of girls play COD. A lot of them are pretty damn good at it too. So your not as special as you think. So with that in mind... YEAH, GET SOME!!! WOOOOOHOOOO!!! There isn't any real good trailers for MW3 so heres a real good one from MW2. Have fun baby girl. I'll see you on the battlefield.