Weapons factory
The Weapons Factory (also abbreviated as WF) is a series of video game capture the flag class-based mods, originally created for Quake II by brothers Tom "Tumorhead" and Gregg "Headache". It since has had several incarnations (six plus three currently in development) on most of the predominant FPS games released since 1998 (in the Quake, Unreal, Half-Life and Tribes series).