Citadel is a crappy forerunner map based underneath the Ark. It is basically a small ark that's only good weapon is the Rocket Launcher which makes whoever has it get a camping spree. Citadel contains no Gruntiness thus so makes luck the only weapon (rocket launcher excluded) You are best of eating Marnes expires spunk then playing this map This map has a Skull for the Multiplayer Achievements. For the Gay map packs it unlocks a achievement for you. Another acheievement on this map is Pull! for getting a shotgun spree....wait i forgot the shotgun.... My GT for XBL is Toco149