Fault Line is another of the larger arenas. It is virtually the same as Subterranean, with the exception of the addition of the round room and the correlating corridors. This arena possesses access to all weapons, a double damage near the round room and a cloak located in the large center room off to the side on one of the ledges.
- Conditon: Play 22 Multiplayer games
- Supported Modes: Battle, Survival, Prime Hunter, Capture, Bounty