Template:Multiplayer Map Infobox Rat's Nest[1] is the name of a map that is announced in the Bungie Weekly Update: 10/12/07.[2] It will be available for download on Xbox Live Marketplace 11, December.
It is said it will be the scariest map of all time. Dark, frightening and surprisingly enormous. It will include vehicles (a Mongoose was mentioned in the update on 10-12-07) but Bungie has also said that it will not 'need' them, possibly hinting at the small and claustrophobic environs or teleporters. It is made similarly to Crows Nest, with internal vehicle accesible roads, tight corridors, walkways suspended above areas and vents. Bungie stated in an update that the level will include actual rats. Also it appears in the distance Pelicans and possibly Hornets pass by.
On 11/19/07, Microsoft released information regarding the first Halo 3 Heroic Map Pack. [3] The new name for this map will be "Rat's Nest," based on a level from campaign mode. The map pack will retail for 800 Microsoft Points ($10 USD) on 11/12/07.