Issues I have noticed

I recently tried to play 3 player split screen with my buddies and we quickly ran into problems. A lot of the maps just sat at the loading screen for a couple of minutes and then when back to the carnage report screen. We also came across that we could only play 3 player if we played Halo: CE maps, Halo 2 only let us play 2 player. And also my Pillar of Autumn achievement hasn’t yet unlocked after 3 weeks.