i agree with your first two points
well i think after their initail attack has withered away they should be expandable, in fact i am sure that is the way many paratoopers felt and were problably even told, other wise you will more likly thannot take infantry before paratoopers which is simply unrealistic. and rember to fully deploy them one time they cost six, so it is not lik these units will be used lightly.
I dont think you need a counter in terms of one peice, the main counter would be to not have powerful units defending the cost that can be picked off by airborne units before the battle starts
I think they should always attack at zero except for an opneing fire shot of three where they select the targart. Remeber after the inital suprise these guys a sitting ducks against any other unit type. I would take armored vehicles and artillery over well “elite” soldeirs with submachine guns and rifles anyday.
I argee the should be expensive to deploy, but not really that costly to build.
I think operation sealion had room for airborne assault so i dont like the idea of not being able to attack capitals
range should be 2
also i dont see why you still support limiting them, if you have to put a cap on how much of a piece you produce it is not a fair or well desgined peice, unless of course you limt everything that took especially trained men, which is like everything and is already taken care of buy IPCs
And defending at 2 is ridiculous how do guys firing pistols compete with heavy artillery and tanks