smroadkill15 on 23 November 2015
There are many different reasons like; more competition, lack of split-screen, MCC mishaps, Halo 4 mishaps, lower metacritic than previous Halo's, and general fatigue of the franchise.
Personally, the multiplayer is some of the best if not the best in the franchise. Considering how good the multiplayer is, free dlc, and plenty of post launch support, I think the game with have very good legs.
