I don’t know if there’s a page of reported problems but here are mine so far:
Whenever I playlist Team Slayer, and its Halo CE. Certain enemies are appearing with their gamertag over their head as if they were my teammate. Sometimes I also spawn with the opposing team and they spawn with me. The game also freezes after each game at the “Loading” screen. The other Halos don’t seem to have this problem. I stopped playing TS. Halo 3 seems to work fine. Although sometimes after a game if you stay in the same lobby it will start up a new game even if there are less than 4-5 players, often leaving you 1v2 or something similar to that.