HALO 4 RANKING SYSTEM? (Reach's or 3's)

How exactly will the ranking system in Halo 4 work? Will it be like Reach where you can rank up in campaign, coop, firefight, and multiplayer OR like Halo 3 where there a skill based system with exp based on wins? Curious bc Ive seen nothing so far…

They said it would be a modified reach version.

I hoped they would have a reach for social playlist and halo2 style for ranked. However, that isn’t going to happen.

No one knows.