I went back to continue my campaign last night and somehow it didn't save like 30-45 worth of gameplay. I stopped playing and went out the other night after the bad dude reveal himself to me but it didn't save.
I really don't feel like wasting time just to get back to where I was before.
And the multiplayer has grown on me a bit. The action is smooth and consistent with what I would expect from a halo game but all these COD style perks piss me off. I don't even use any of them in my loadouts as a form of boycott lol.