 Halo 3 supports multiplayer map downloadable content as well as game updates via Xbox Live . The first three post @-@ release multiplayer maps , " Standoff " , " Rat 's Nest " , and " Foundry " , were released as a pack on December 11 , 2007 , collectively known as the " Heroic Map Pack " . A second group of three maps including a remake of Halo 2 map " Lockout " , titled " Blackout " , a new map " Ghost Town " and a remake of Halo : Combat Evolved map " Sidewinder " , titled " Avalanche " were bundled as the " Legendary Map Pack " , on April 15 , 2008 . These maps introduced visual filters to the Forge pallet , which change the way the maps look . A remake of the Halo : Combat Evolved map " Chill Out " , titled " Cold Storage " , was released as a free download on " Bungie Day " , July 7 , 2008 . The third multiplayer map pack , titled the " Mythic Map Pack " and consisting of the maps " Orbital " , " Assembly " , and " Sandbox " , was included with the Limited Collectors Edition of Halo Wars . The map pack was released over the Xbox Live Marketplace on April 9 , 2009 . The fourth and final multiplayer map pack , " Mythic II Map Pack " , was released on February 2 , 2010 . The map pack includes the three new maps from Halo 3 : ODST : " Citadel " , " Longshore " , and a remake of Halo 2 map " <unk> " , titled " Heretic " . 
