Honestly, I think 343 learned a lot from the mistakes they made. These last few weeks I've played (mostly grifball) isn't as bad as when I first played it. The main issue I have is how the custom made maps lose walls or other objects if the game happens to go into black screen because of a host change. The stupid lighting feature screws up that. (Cool idea though.) Besides lag and the map disappearing I don't have too much of an issue with grifball. Slayer isn't that great or competitive as it was in Halo 3. I do give credit they do make the make the maps look amazing even though Certain Affinity does quite a bit of work on the maps as well for Halo 4.