I'm a huge Halo fan and have been playing since the beginning. I was a little worried about Halo 4 at the beginning from seeing all of the new additions added but it turns out it's a pretty great game. I still love Halo 3 more and that's because of the ranking system. Although Halo 4 is numbered ranks, it's still no different than that of Reach. I hated Reach to be honest. I thought it was a terrible game. There was nothing motivational about it. I really think that 343 should implement a true skill ranking system back into Halo 4. I think that your overall rank should stay the same and you get it the same way (SR1-SR130) but they should also put individual ranks for the playlists like there were in Halo 3 that go from 1-50. This would add more to play for and much more competitive gaming which keeps people playing. Halo Reach had a lot of people revert back to H3 because after a while it just got very boring. Everything else in the game is fantastic, I love it. My personal opinion is I just wish it had a ranking system similar to Halo 2 and Halo 3. I do believe a lot of other long time players would agree with me.
Also, on a side note, they really need to bring in more playlists that do not revolve around objective gameplay. Team Doubles, MLG and a slayer based FFA should come into the matchmaking playlists very soon. A would also love to see some smaller maps, maybe a little more symmetrical as well.
Everybody share your thoughts as well, please.