Developed exclusively for Xbox 360 by acclaimed developer Bungie, Halo 3: ODST is a new, stand-alone expansion to the Halo saga that lets players experience the events leading up to the epic story told in Halo 3 through the eyes of an entirely new character the ODST (Orbital Drop Shock Trooper), as they search for clues leading to the whereabouts of their scattered squad and the motivations behind the Covenant's invasion of New Mombasa. The game adds a new dimension to an all-encompassing universe that gamers around the world have known and loved since the release of the first Halo game in late 2001. New Campaign, New Hero, New Tactics Much more than an expansion, Halo 3: ODST allows players to explore dangerous new ground, search the dark, abandoned streets of New Mombasa for clues, and fight back against the Covenant invasion from multiple perspectives. Dropping in as "the rookie," a new member of an elite squad of Orbital Drop Shock Troopers (ODST) sent into New Mombasa on a classified recon mission, you'll be armed with specialized weaponry and upgraded technology, including silenced weapons and a VISR enhanced vision mode. Separated from your squad, you'll have to scour the city for clues in order to learn what happened to Buck, Dare, Dutch, Mickey, and Romeo. As you collect new clues, you’ll experience the story from their perspectives, fighting through the occupied city hours earlier. A New Way to Play: 4-Player Co-op Firefight Drop feet first into a new way to play Halo with the cooperative campaign mode, Firefight. Form a squad of your friends over System Link or Xbox LIVE and put your skills to the ultimate test against the invading Covenant war machine for glory, high scores, and achievements. Do battle in multiple environments, on foot or in vehicles, and against increasingly difficult waves of Covenant attackers while Halo 3's skull modifiers progressively activate to up the ante.