Lol,theirs plenty of females in the gaming world that own on this game.A few people that I games with before I found CAG where girls and they could hold their own in this game.
Its a complex game based around using cover,knowing when to fight,when not to and when to run to survive to battle again.
Check out a few tube videos on the gears series.If u like a good decent story campaign you'll get it with gears,multiplayer is something that will either excite you everytime you play it or you'll be frustrated to the point where u could commit murder and completely hate it