GamePro writes: "Get ready for the best Halo game yet when ODST hits stores this coming Tuesday (or Monday night if you pre-ordered the game). I say trade in your Halo 3 disc for Halo 3: ODST because you won't look back at that campaign once you play ODST. Plus, ODST comes with a second disc that features the entirety of Halo 3 multiplayer on it, including three new maps. (I'm stoked about the Heretic map, it's the perfect recreation of my favorite Halo 2 map, Midship.) See you online in the heat of Firefight".