Halo: CE was made by the Assault on the Control Room, Two Betrayals, and Silent Cartographer levels. Halo 2 has no distinct, awesome levels of awesomeness that I want to replay - if I get it out I start blankly at the level list for a few minutes then play Delta Halo. Halo 3 I do not own but have completed twice, and it is saved by the Grav Hammer - otherwise it was just a good generic shooter with shiny weapons. Halo 2 and 3 lacked for me the awesome novelty that fighting for your survival on an ancient alien ring world beset by murderous religious fanatics hell bent on destroying the galaxy as a means of ascending to heaven that was in Halo 1. But now Halo 1 feels a bit clunky compared, with single wielding and really slowly regenerating shields. Gah, not only is the sequel inferior, it drags the original down with it!