I have not even addressed the costs. Those values are just an idea to illustrate how the numbers run out with a d5 system so that more units arent really possible to the extent that we are discussing “nation specific unit values” If you want to have a few historical NA’s then thats another concept alltogether because thats only a few units here and there. I like your ideas as NA’s but just want to add like 3-4 new units:
naval fighters ( planes that only are carrier based/ not mixed with land fighters)
SS panzers
Mech infantry
Cruiser
The other NA’s you want will be added AS NA’s… where you get to choose what you want from a list. Each item on the list will have a point value ( like AA miniatures) so in the game you start off with a certain amount of points and you choose what NA’s you need paying these points for the “cost” of having this benifit. This system will then remove the imbalances of one NA Vs. another… what do you think?