People who have played the leaked version are also saying Halo 4 is apparently really awesome. I'm pretty ******* excited! I really enjoyed Halo 3 when it came out, hoping I'll enjoy 4 as much, if not more.
Also looked at the Multiplayer trailer that came out 2 days ago, it looks a bit different but still pretty good. Not sure what to think about the different weapons being used in MP, though!