I think a slight alteration would be cool: RougePredator. its got a touch femininity to it, a few will probably mispronounce or mistake it for rogue at a glance and it sounds cool. google rouge if you wanna know what it means. Good luck.
As well as: "a cosmetic typically used by women to redden the cheeks so as to provide a more youthful appearance, and to emphasize the cheekbones"
No one can pronounce RoguePredator?
How about Artemis?
Dumbásses probably won't know it's a greek goddess..so you can represent your femininity without being harassed by hórny teen boys.
Ever tried Ozone? Wanna play?
Also Guileful Huntress.....Check out a thesaurus and find the synonyms for sneaky & or stealthy. You should find some good ones there.. good luck to you :) PS: I'm a female gamer as well GEARS HEAD :)
I'm on Xbox360 though...