I haven’t played AA50 yet so bear with me. If transports have no combat value then why even bother putting them in the equation?
Secondly, if we’re gonna start ignoring units with the justification that they aren’t really a factor why don’t we ignore bombers when a territory is being defended. b-17’s and he-111’s, etc were definately not a defensive weapon lol…jk. subs did have anti air on them as did a significant number of transports in ww2. to say that subs cannot defend against air attack and that transports ‘especially military transports’ didn’t have defensive armament to counter air/naval attack doesn’t make sense.
surface units can simply ignore subs and transports…tell that to Churchill and Doernitz.