In the last campaign airfield supply has changed? It seams better supplied now despite attacks. Maybe the old way was better? But i would suggest that red side should have better supply by default.

Blue side players would not like it off course. But again red side takes hard beating because blue side has better planes and is more numerous that which is historically accurate. But it is also historically accurate fact that German lines suffered from bad logistics. At least in the autumn and winters of 1941-42.

Now there may be not up to four, but up to three supply convoys. This is done so that players do not leave in the absence of resources at absolutely all airfields. This setup makes it possible to disable airfields in less time than with two supply columns.