Alright so I made an account just to post this because I would LOVE to have it implemented and think many others would as well.
I have gotten every Halo game so far with the exception of Halo Wars and I have been waiting for this CSR ranking system since I picked up Halo 4 on it's release day. Some people care about rank, some don't. I get that. But for most hardcore gamers rank is very important. It lets you show off your work and (hopefully) places you with opponents of equal skill. So far CSR seems to be working well with a few exceptions, but with it being new of course there are going to need to be updates.
What I love about it right now:
I love that you can gain rank as well as LOSE rank. If you can't lose your rank, how is it even a rank at all? It gives you something to actually lose in losing a match or not doing well. This is a key feature that had been missing from launch.
From what I can tell so far, it does a decent job of matching you with appropriately skilled teammates.
Ranks for different playlists
Different colors for different rank tiers
What I would really like implemented
CSR should be visible IN GAME. Halo Waypoint is sleek and all, but I don't want to have to go from my console to my laptop every time I want to see an update on my rank. I want to see my rank change in real time (idealistically). Seeing SR is really pointless. All it shows is how much someone has played the game. SR requires NO SKILL AT ALL. If you could replace SR with CSR that would be MAGNIFICENT! I think this would bring all the hardcore gamers back. And if you don't care about it, then it does not effect you either way.
At this stage 343i should be considering social playlists so that those players who don't give a hoot about rank can just goof around. It should also be set so that guests cannot play in ranked games. Allowing guests creates a broken rank system.
That being said, I love this game and what 343i have done with it. I don't know how the netcode is organized and how easy it would be to implement my requests, but it would make a world of difference to me and my friends.