Agreed bud. I think if 343i played their cards right, Halo 4 will be an absolute hit.
They've unveiled so much to us over the past few months with Specializations, armor, vehicles, weapons, Spartan Ops, gametypes, progression system, etc...but they haven't said anything pertaining the ranking system other than "we'll cover that later".
Imagine if they're saving the best (and most exciting) for last? If they actually have a ranking system in H4 and held off telling us for this long, I commend 343i.