I got Halo 4 and it looks like The ranking up is the same as HALO REACH if anyone needs a game save to take a look at it let me know ill upload it...
Heres my save, http://www.mediafire.com/?xvtjpdq6y3287
Here GPD i extracted from my account. http://www.mediafire.com/?dceg1bnb6yq271e
Take a look at it.