Halo 3 was a great game with alot of features almost all games lack. Forge, theater, 4 player co-op, decent zombie mode along with customize-able game modes all at the same time in one game. Sure you have games with some of those features but none with all. Now Halo 3 will have a new campaign, new game mode (fire fight or w/e), new weapons, some that resemble old ones and new similar but different gameplay. Also ODST ships with a Halo 3 disc with the ODST expansion on another so you get the whole experience in one package. Imo, this package will be one of the best packages that any game developer has put out on the market. I hope ODST will have it's own multiplayer like Halo 3 but as the ODSTs so it'll be closer to something like CoD or Killzone. That and use forge-created maps in fire fight and fight against the flood as well. Oh and play as spartans/elites in fire fight as well, that'll be fun. Bungie has always been my favorite game developer, just above Blizzard, Square Enix, Hideo Kojima, and many other great ones. Oh and I may be a fanboy but so is anyone else who loves games, I just picked Halo as mine, that's all that's different!