Please consider the idea of replacing ENY with a system change to make aircraft availability linked to Strat Targets. So that like in real war, a countries ability to wage war is dependent on that countries ability to produce war materials and protect that ability with it’s forces.
Tie aircraft availability to certain hangers at each airfield. And limit aircraft availability based on the ability of each industrial zone to produce and supply each airfield.
The industry would be divided around each town/city The Industry could be supplied / repaired with field supplies via the automated convey system and or player provided supplies. Say 10 field supplies to bring it up to 100%. With the ability to stockpile supplies to bring the production up to 120%.
Damage to the industry zones near the towns and airfields would be to effect the ability to produce war materials (aircraft and tanks, ords) . Each industry zone has the ability to produce all war materials. Because of damage to the Industrial zones, some aircraft might become unavailable at the airfield supplied by that Industry zone, however that aircraft would still be available at other airfields supplied by other industrial zones.
An industry zone would have the ability to be captured and would therefore be protected with several Airfields, Vehicle Bases. A country would win the war by destroying the other guys ability to wage war and capturing territory.
I think this would promote fights, provide additional targets and provide additional strategy to the game. It removes the ENY issue because while an aircraft may become unavailable at one location due to the industrial zones inability to produce it, that aircraft is available out of other zones and can still be used. Different aircraft availability will be tied to the Industry zones percentage of damage to determine if the aircraft is available or not and it’s availability can be changed by repairing the damage in the Industry zone.
If the industrial zone is 100% destroyed, no war materials are produced out of that zone until at least 10% of the damage is repaired.
The three airfields that are now unable to be captured would remain as they are with 100% of all aircraft available because they are supplied by an underground Industrial zone that can not be captured or destroyed.
.