1. host migration and lag, it seems like it's not going to be fixed so i feel it should be moved to dedicated servers which shouldn't be a huge issue if the game is only on Xbox normally i wouldn't have an issue with this but it's more of an issue in halo 4 then ANY other game I've played
2. the maps aren't exactly the best and they get repetitive quickly with few of them being actually good. the maps also feel to promote camping over running around. this gets annoying in swat when people just sit on top of buildings with no radar to be seen by.
3. my last major problem is ordnance drops don't feel consistent with how the team is doing. what i mean by this is that a losing may still get **** while the winning team may get rockets, snipers, and spartan lasers which keeps the games less competitive and turns them more into a slaughter fest