Encountered by long-range survey remotes exploring Delta Halo, this looming and majestic set of structures is comprised of strange stonework that appears to have been transported from another location entirely. Its origins remain open to speculation. As glittering drops of rain fall from rapidly dispersing clouds, sunlight-drenched Warlock hides its original purpose in the moss and ruin of unknowable age. Both Covenant and human troops have passed through here, but an unmistakable sense of foreboding soon drives both from its grim and questionable shelter.
Warlock is similar to a dungeon, dark and gloomy. A small level, it has four bases close to one another, teleporters on all four sides, transporting the player to the opposite side of the arena. In the central cavity is an active camouflage inside a mid-column bulge. The outer edges are used in each base as a housing for turrets at each base's ledge, accessible by a fan propelling upward.
Warlock features the same weapon lineup as Wizard, except for some minor changes: the assault rifle, which didn't appear in Halo 2, has been replaced by the battle rifle, the addition of the SMG and the removal of the overshield.