We also have a new movie for Halo 3: ODST, showcasing this new game in the Halo saga that lets you experience events leading up to the story told in Halo 3 through the eyes of an ODST (Orbital Drop Shock Trooper). Halo 3: ODST introduces Firefight, a new cooperative multiplayer mode where up to four players can assume the role of an ODST squad and fight together to take on increasingly challenging waves of enemies. Also included are three new Halo 3 multiplayer maps on a 2nd standalone disc. Microsoft revealed these remaining three multiplayer maps, as Heretic, Citadel and Longshore. Heretic returns players to familiar ground as the Halo 2 arena Midship makes its debut in Halo 3. Citadel is a long abandoned Forerunner stronghold, while Longshore is designed for large scale combat and well suited for smaller affairs.