A new perspective. Or well not new, but different to "Tommy Testosterone Tits" (ho yes, ZP has invaded my vocab). Perhaps a cop who is thrown into a civil war and must search for his family... searching coming before the killing.
(It has been said above, but...) Interesting weapons. Perhaps a gun that is used to fire restraints which hold enemies in place when fired at their limbs, (imagine little horseshoe shaped things with pointy ends which can hold people to walls, floors etc) but when fired at the stomach kill them.
Cool hit detection, shoot them in the legs to slow them down! Shoot them in the arms to disarm them! Shoot them in the neck if you're a bastard.
The option of NOT killing your enemies but incapacitating them.
um... EMP grenaides!
(It has been said above, but...) Interesting weapons. Perhaps a gun that is used to fire restraints which hold enemies in place when fired at their limbs, (imagine little horseshoe shaped things with pointy ends which can hold people to walls, floors etc) but when fired at the stomach kill them.
Cool hit detection, shoot them in the legs to slow them down! Shoot them in the arms to disarm them! Shoot them in the neck if you're a bastard.
The option of NOT killing your enemies but incapacitating them.
um... EMP grenaides!