your entire border and all your units in enemy territory should be within AC, INT range. This is part of the air game also to prevent being patrolled by "hidden" enemy airplanes.
"Should an air squadron, with all their support equipment and personnel, spare parts, fuel and ammunition depots, be able to hop on their own war planes and pop over for a beer on the other side of the planet?" Everything is relative to what other units in the GAME are capable of. Its way more realistic than an AC driving across the entire continent with ZERO pause.
Oh yes there should be no refueling when just transferring airfields. It should really be called "rearming" When do these AC ever stop to refuel???? haha in enemy territory? Maybe airbase capacities is simpler and better... hmm
Near the end of day start construction on expensive buildings so that you have as close to zero resources in the bank. After the day change, cancel all the buildings. It's kind of fun to see what combo of industry, ports, intra, bunkers, etc is the best for your situation.
Arty is too powerful and shoot and scoot is unrealistic. How to fix both with something that seems implementable? Give Arty Patrol circles like planes have but make the patrol time 30 minutes or even 1 hour. Arty could use its full strength when in a stack in direct combat. Bombers. Patrolling is no longer used. Bombers must direct attack. Airfield level 1 should have 1 hour refueling. No patrolling and the longer refuels make ranked airbases much better. This would give needed depth to the air …