Aye, sorry, I've been putting some data on ships together (something to do while I wait for HoI4

), and am going through British Cruisers at the moment. Turns out at least three so far were sunk by Ju88s, so had the 88 in my head. I agree that the C-54 was a more capable transport than the C-47 (and that the Germans developed better transports as well), but apart from maybe getting a bit more bang for buck in terms of factory usage, beyond that what difference does it make in a gameplay sense? It's a bit like the merchant ships that will be coming off the slips in 1943 will be better than those in 1936, but not by so much as to change their role.
Don't get me wrong, I'd be happy with having either having a tiered tree of transports and hope that if it's not in the game, it'll be moddable, but given they're not fighting aircraft, and the role of a C-47 isn't so different from that of a C-54 (what was the different in carrying capacity between the two?), but in a game that abstracts out CVEs to a tech bonus, having one level of transport plane seems reasonable.