This is somehow better than the [V] rankings.
Every rank is reachable without playing more than 10.000 missions with the same pilot.
I was planning RR to have different ranking system, too, but I gave it up, because I think it might disturb your pilot file what rank your pilot is on, and this might cause barracks, or pilotview to crash, freeze, uninstall, self-destruct, or anything like that
[V] ranking sys is better for PXO, when you play almost every day at least once. But not good on the side how easy it is to hack any multimissions and play them on PXO.