Halo 3 - Master the Multiplayer

EPITAPH (download guide)

Bungie says: "Some believe the Forerunners preferred desolate places. Others suggest that few other sites survived the Flood. 2-6 players."

GamesRadar translates: A cathedral-shaped room with two hot spots of action - the central room (with rocket launcher and Gravity Hammer) and the exterior walkways (where turning each corner could lead to your death.)