Quake 4 - Wikipedia
Railgun (Q2), Quake Wiki
Big Gun (map), Quake Wiki
Big Gun (map), Quake Wiki
Quake III Arena - Wikipedia
Big Gun, Quake Wiki
Super Shotgun (Q2), Quake Wiki
BFG (weapon) - Wikipedia
Big Gun (map), Quake Wiki
Big Gun - Wikipedia
Strogg Air Defense Cannon, Quake Wiki
Quake II - Unit 7: Level 1: Big Gun
Big Kill - Official TF2 Wiki
Big Kill - Official TF2 Wiki