Someone that is always being a cunt and looks for opportunities to be a cunt, shooting others down.
John: What's up Sam?
Sam: Hey fuck you John, you can suck a dick.
John: What the hell... fucking cunt rifle.
Team Mate #2: "I have the Rocket Launcher!"
Team Mate #3: "I am using the Cunt Rifle!"
Team Mate #4: "You freaking would... you cunt!"