Just an idea, instead of having a single factory for a single plane type. Why not make a maybe 3 or 4 factories that stand for a certian group of planes that are now disabled quite frequently. In order to disable the group of chosen planes 3 to 4 factories have to be destroyed completly. This would promote resuppying for the damaged factories, bombers for the attack on the factories, and defense.
The factory idea would occur when Muckmaws idea comes to play.
karnak said in general it would be hard for a country, with lesser numbers, to destroy a factory. The factories would either have to be smaller or fewer of them, such as 3 or 4 that covers all the major ENY planes. 1 Factory to appear for numbers 200 to 225, this would eliminate the best ENY planes. Then a factory would appear in numbers of 226-250.. And so on...
I have no problem with the ENY because Im a bomber dweeb and fly B17s all the time. So my opinion is different from the players who fly fighters more often, and Im sure they will argue aganst this idea.But, I think this would definatly add a great twist on the "war" we have in the MA for both bombers, fighters, and all else.