The Halo 3: ODST campaign is fairly short but extremely well done. Bungie took a chance on a new direction for Xbox 360's top franchise and it has paid off. The game is above all fun, well crafted, and the Firefight mode is flat out awesome. Add in some co-op play, the 24 multiplayer maps as well as Firefight and I hesitate to call ODST an expansion, but more like a great extension to Halo 3. Bungie has brought us another stellar entry in the Halo franchise.