Bungie confirmed that Halo 3: ODST will include all twenty-four original Halo 3 Multiplayer maps, straight from the developer's mouth: All shipping maps: The Heroic Map Pack, The Legendary Map Pack, Cold Storage, The Mythic Map Pack, and three brand new exclusive maps are included.
Halo 3: ODST is a new campaign chapter that predates the events that unfold in “Halo 3” and gives players a new perspective through the eyes of a new hero in the “Halo” universe. Experience the fate of Earth from the brand-new perspective of a special forces ODST (Orbital Drop Shock Trooper), adding a unique outlook and new gameplay elements to the events that unfold in the trilogy’s finale.
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