One, Matchmaking is so unbalanced. In warzone I had to 2 out of 7 games that were close and one we won. Get Good, I know. The other 5, the opposing team won with double the score.
Two, Warzone is a pay to when game mode. The only thing you should be able to buy are skins and armor.
Three, this game is becoming more like CoD. The feel of the game is not like Halo 4.
On the positive side, this game looks great.