Halo 4 is amazing but not fun do you agree?

I know it sounds contradictory but I believe halo 4 is probably the best halo ever. It definitely has its flaws and some things in the game I disagree with. But overall I find it to be amazing. But it's not fun. Almost like the game takes itself to serious and I take it to serious. Prior halo games were a pure joy for me to play I would smile from ear to ear whether I was playing good or bad it was just so enjoyable. But halo 4 makes me incredibly angry all the time. Does anyone else agree? I am in no way complaining about the game like a lot of the halo community has been doing. I'm just not experiencing that same fun factor. So as a game it is probably the best halo but from a personal fun standpoint it's at the bottom right by reach in my opinion.