My favorite gun is the guns that the snipers use in the beginning of chapter 5. (you can get it other places like the beginning of chapter 4 and throughout chapter 3). This is my favorite gun because it kills ALL enemys in 1 shot. (except berserkers, boomers, seeders, and obviously, RAAM). It also has a scope on it so you can get a headshot easy (you don't really need to do that though, not even on Theron Guards). The only bad things are its single shots and its limited ammo. THAT is why its my favorite gun!