okay, I think I found the page my friend showed me in questioning this rule, page 13 in the revised rulebook, it says (in bold) Resolve all combats involving a given unit or group of air units before moving onto the next

I dont know, Im looking for any other thing he could have showed me because this makes more sense to me right now…  that all happens during the combat move so Im assuming it only refers to AA fire, in which case he is completly wrong…

Oh well, we were just hoping we had found a way to ruin nonagression treaty