Strat works like this...
1 Ostwind rolls up to town. Said Ostwind levels the town. 1 M3 with 10 troops rolls into town. Said troops take the town.
Suddenly, the 10 troops that took the town become super heros and teleport to the factories in the surrounding area. They single handedly take over the entire infrastructure, forcing the unions of the factories, trucking, and railways to produce and deliver goods only to airfields that are aligned with them, even if the factory is totally surrounded by enemy airfields.
All of this really doesn't matter to the airfields, even though they are not recieving any more supplies... It seems each airfield has mastered the art of molecular cloning and replication and can generate INFINITE numbers of aircraft, fuel, ammo, ordnance and soldiers as long as they have bunkers still on the field or adjacent town.
Hmm.. seems to me that the 'factories' only function is to make fuel and ammo bunkers, troop barracks and aircraft or vehicle hangers.
Said bunkers, barracks and hangers are actually replicators (ala Star Trek Next Generation) that can produce unlimited amounts of ammo, fuel and vehicles.
So you can go ahead and bomb all the stupid factories you want and you can't effect the enemy unless you can also destroy their entire airfield.
As long as there is at least 1 ammo bunker on a field, that field has UNLIMITED bombs, rockets and ammunition of every type.
As long as there is at least 1 troop barracks on a field, that field has UNLIMITED troops
As long as there is at least 1 fighter hanger on a field, that field has UNLIMITED amounts of fighter aircraft of every type, make and model available in AH.
As long as there is at least 1 bomber hanger on a field, that field has UNLIMITED amounts of bomber aircraft of every type, make and model available in AH.
As long as there is a vehicle hanger on a field, that field has UNLIMITED amounts of ground vehicles and boats of every type, make and model available in AH.
The only element you can effect quantity of is the total capacity of fuel that a vehicle may take from a field. But even this ends up being UNLIMITED amounts of the same percentage quantity of fuel, regardless of how many gallons that percentage makes up. (in a B17, 25% fuel maybe 200 gallons, and every B17 that wants to take off can get 200 gallons. In a spitfire, 25% fuel maybe 50 gallons, and every spitfire that takes off can get 50 gallons, but not 200, even though the B17s can) However, fuel can not be totally destroyed and any vehicle can always get 25% fuel no matter what.
The really is no strategic element in the current system, and IMO never can be if unlimited resources are always available.
Winning a war (or any game for that matter) should mean that one side played smarter and made better decisions than the other side. In AH, the war is simply won by whoever can gangbang the hardest for the longest time. In AH, it is shear weight of numbers that wins, not skill or planning. No matter how hard and how smartly a country defends it's fields, if they are outnumbered 3-to-1, the eventual limitless spawn of the attacking enemy will overcome them.