Okay, I have posted an idea in a thread before about how the ranking system could turn out. Some understood. Some did not. I will clarify here and give more details than before.
343i Confirmed a mix of Halo: Reach's ranking system and Halo 3's ranking system.
First, you would have an overall rank that is exactly like REACH's ranking system. Then you would have an individual playlist rank for each playlist, just like Halo 3. First, let me say, these ranks would not be connected at all. Okay, here we go.
OVERALL: This rank is exactly like Reach's ranking system. You get credits/spartan points or exp or whatever to contribute to your rank. Maybe Campaign would contribute, maybe not. Who knows? The only exploit here is farming.This rank can not go down since it would be used for your customization unlocks. It really only gauges how much you have played.
INDIVIDUAL PLAYLIST: This is like the little white rank you had for each playlist in Halo 3 after they updated it. They were different for each playlist depending on how much and how good you played. This could be boosted, but going up in this would not affect your credit gain or Overall Rank gain at all. Only your gameplay would. Boosting this rank would gain some Overall since you are constantly winning. But it wouldn't make you gain more than anyone else just because that rank is high. This ONLY says how good you are in that playlist. It ONLY ranks you based on wins and medals, etc. Maybe only wins. It is not a numbered rank, but rank all the same. It can go up or down just like Halo 3's could. Only used for matching, really.
Now, if you have questions or don't still quite understand my idea, ask away. Suggestions and such are welcome as well.
This is merely my idea and it could work very well if executed properly. Though, 343i may have something different in store.