Quake 4 is the other FPS published by Activision for the Xbox 360 launch. And that's about all this game has in common with the excellent Call of Duty 2. Quake 4 could have been a good game, but the technical issues, especially the framerate, just killed any interest I could have had in this game single player mode. The multiplayer on Xbox Live is quite good, but unfortunately it looks like there aren't many players. Make sure you rent this game (if possible) before paying the full price.