343 should include a ranking system like Halo 2 where your level fluctuates. It wasnt based on how often you played or individual score it was base on win/ loss. People played more as a team. People who dont want to play rank can just play social. I thought that ranking system was awesome because it upped the stakes, I played with people at a similar skill level, and it gave me a goal to obtain. My only complaint was that after level 35 every other game was against modders unless you were host.
Look 343 has done an awesome job with Halo 4 but not including a ranking system was a big let down.