Xbox 360 and ps3 i need some good shooting games?

ok i got gears of wears 2 and alot of other games but i want some more good games but i dont know what to get and i dont wanna sent 60 on a game and it suck can yall name some good games for me to go get i got games like gears of war,army of two,kane and lynch and alot of sports and i would like them to be a co-op or whatever its call so i can play with my brother when he comes here so can yall help me pleasessssssssssssssssss lol