Citadel

Citadel is an upcoming Halo 3 map that will be included in the Mythic Map Pack.

Trivia

 * This map is expected to be released with Assembly, Sandbox, Orbital, Longshore, and Heretic in the Mythic Map Pack.
 * This map contains a hidden skull. Locating the skull earns the player the 'Citadel Skull' achievement.
 * This map is rumoured to be a Forerunner map because of the Forerunner symbol on the Citadel Skull achievement
 * This map could be based on the end of the level The Covenant as where Truth attempts to activate the Halos from is called "The Citadel".
 * Citadel is rumored to be a citadel type building, hence the name.