File:Q4.png For multiplayer strategies, see Grenade Launcher (Q3). In Quake 4, the Grenade Launcher fires grenades as its name implies. These grenades will bounce for about three seconds before exploding. Grenades will automatically explode upon contact with an enemy or exploding barrel. The Grenade Launcher is given to the player in the level MCC Landing Site, where he uses the Anti-Aircraft Cannon to destroy the blast door above the trenches. The players will recover their Grenade Launcher shortly after their release in level Strogg Medical Facility.