I've never heard a girl on voice chat, and have never seen a girl playing an FPS or even talk about the PS3!
I tell ya, they are non-existent (that, or I've never come across any).
Create your own private paradise in the palm of your hand.
Girl Fight allows players to choose from an array of sexy fighters to battle their way out of The Foundation, a shadowy, scientific organization looking to weaponize the psionic fighting abilities of the cast of gorgeous, all-female fighters.
Guys can browse Play Date profiles (there are currently around 1,200), view photos, and even chat with girls for free.