Damn, a lot of noobs in here. More player =/= better. Counterstrike is the most successful multiplay shooter on PC and is played 5on5. Halo 3 is the most successful mulitplayer shooter on consoles and is played 4on4 or 5on5.
MW is also played 4on4 / 5on5.
You have to use teamspeak, tactics etc. Thats what makes a good mulitplayer shooter.
32 player free for all is just pointless for somebody with skill.
Imagine not having GamePass on your console...