Machine gun whore

A person, who in FPS video games, can't kill anyone with an average Joe's weapon, and hence forth has to run around with a noob gun with 100 rounds, health injectors, grenades and mortar strikes. This ruins everyone's day.

Jon (Over mic): Hey you fucking noob you! Quit being an Machine Gun Whore!!!
Bill: Why? So you can fucking kill me for once in your goddamn life? Forget it!