I beat the campaign in less than 7 hours. Would have been 6 but I went looking for the intel. Kinda disappointed that it was so short and the disjointed story from switching back and forth between Locke and Chief didn't help much, especially when you only play as Chief less than 5 times. The DBNO mechanic never gave me a chance to feel defeated and I only had to help out teammates twice while they dumbly risked their lives to help me several times. The levels are still excellently crafted and Sanghelios and Genesis are amazing when you stop and take a look around. The multiplayer has exchanged Spartan Ops for Warzone with Firefight making a return as a Warzone playlist. The rest of it feels the same: its still high adrenaline action with plenty of varieties to keep anyone interested. Overall the game feels like another step up in the franchise, much like 4 was from Reach, but a few new ideas aren't enough to save it from becoming stale.