This game was the most excited I had ever been for a release, and also the most disappointed. It is over two months since MCC was released and matchmaking is still practically broken, it takes about half an hour to an hour to find and successfully join a a full game of matchmaking. Searching within a party you're looking at more like an hour to two hour to find and join one complete game.
There are many more horrible bugs such as the H2C hit detection being broken, but I don't want to sit here for an hour writing an essay.
When (if) this game is ever fixed, you will not be able to get myself or many other people to unstick themselves from their Xbox Ones and I will amend this review. Until then however, I'm going to cry myself to sleep every night and hope I don't dream of Halo. Hopefully this hasn't killed Halo for good.
EDIT: Changed score from 2 to 8. Game now works mostly as it should, though the multiplayer community is non-existent