User blog comment:Ofi123/Powerleveling kanmusus/@comment-861160-20140612132400/@comment-24430017-20140630152101

Its really easy to mvp BB in 5-4. I just ran 5-4 complete for rankings and when you flagship the BB you can usually get MVP around 80-90% of the time. Got my Kongou to 150 with it and carriers to 140. Red planes don't have lower cost than blue planes. They both get shot down at the same rate from what I have seen. Bauxite costs are going to be pretty high if you are running bombers and they aren't that effective.

I never tried leveling in 5-4A, but it would be worth considering for Yamato/Musashi. I would run something like Yamato, 3 CA/CL, CVL (fighters/Saiun), Maruyu. For Carriers I would probably go with 3-2.