Yes… the Submarine gets to shoot at my transport during combat (and i should not have brought the transport along)
No… I may not land my troops after the surface warships are cleared, simply because there was a battle in the first place and the sub is still there
Yes… I may retreat my dumb transport and fighters
Just roll them all at once. As long as you use different colors for different attack powers (ie all 1’s roll white, all 2’s roll red, all 3’s roll blue and all 4’s roll yellow or something) or you just roll for each attack power separately, you are fine. No need to roll each individual bomber since all the hits total up at the end anyway.
I agree with your rational, but I do feel that Paratroopers belong in the game. I don’t know the solution though. Perhaps they could only be used in attacks where at least 1 other unit is also attacking the same territory by land or by sea. (I would make an exception for islands and perhaps undefended territories.)
The most logic and reasonable endgame terms is common sense… you know if (almost certainly) you can’t win, at least experienced players usually does, and probably most AA50 players will already be familiar with AAR or other AA versions.