ODST is a stand-alone prequel to Halo 3. Much of the new game places the player in the role of a stealthy special-operations trooper picking his way through the vast ruins of New Mombasa.

Today Microsoft demonstrated Halo: ODST (Orbital Drop Shock Trooper) for the first time, providing a glimpse of what this prequel to Halo 3 will offer. It's set just a few weeks before the events ...