No problem. Just slap up my "delayed attrition" concept to the whole thing and it's perfectly fair for everyone.
1. Hitting a target factory will have a global, serious impact on whatever that factory is producing.
2. However, hitting it on an individual occasion will be meaningless. A very very very huge amount of ordnance will be required to bring down the factory's efficiency. Something like 42,000lbs of bombs required to bring down 5% efficiency. 0% efficiency = production halt. Once the factory is totally destroyed, it will have to regen upto at least 50% to start production again.
3. Make it so that the system keeps track of the amount of bombs dropped on the factory.
4. The factory efficiency will regenerate at a rate of 5% per hour. Individual supply goon drop will boost up 1% per supply.
So what do we get with a system like this?
An individual bomber formation penetration will do nothing to the factory. Only when it is totally destroyed will the production halt. Since 42,000lbs of bombs will destroy 5% of the efficiency, that amounts to 20 Lanc formations (60 bombers) dropping all of their load on the target to destroy it. Ofcourse, this factory will be placed somewhere deep into the territory, near the HQ or something.
The beauty of this is that the factory regens itself at 5% per hour. How often can a few people get through the entire defenses and reach the HQ? A deck-run Lanc or two would knock off about 5~10% of the production efficienct, but that will be all patched up in an hour or two.
So, if at least two people who have way too much time in their hands team up, and start ferrying his bombers again and again and again into enemy territory, they'll have to do that 20 times in a row to finally kill off a factory.
If two people fly two Lanc forms. (6bombers) and take one hour to reach the target deep inside enemy territory, assuming for some great miracle all their bombers survived, they'll knock 10% eff. from the factory. By the time they drop load, get shot down or dweebily bail, and get their two buffs to the target again, 5% is regened. So they will have to do it for 20 hours straight 20 times in a row.
Meaning: only a really well coordinated, massive number of buffs can really damage the factory. It will take at least 10 Lancaster forms(30 buffs) and all their planes surviving to knock off 50% from the factory at a single time. How often does anyone make missions like those?
Only when a certain country is unrecoverably losing, and the reset phase is imminent, will the target factory be constantly down. In all other cases, if one side wants to kill the enemies plane factory, then they'll have to gather a whole lot of people and do it the right way, and succeed in the collective effort, to reach their goal. If they can't gather enough people (at least 20 Lancaster formations, all planes surviving), then they'll have to do it again and again and again - at least succeed in a aerial bombing raid two or three times in a row, to really destroy a factory.
No one or two dweeb, or even three or four dweebs, will be able to just larry some ord or deck-run a buff into enemy territory and ruin it for everyone. If one side is truly determined, and constantly make a huge collective effort to kill their target, it is only then they will succeed. And if the enemy comes up like that, ofcourse, the defenses will have to either counter it - or sugger the consequences of not responding to a huge enemy bomber formation.
Personally, I think all game strats should be handled this way. Huge amount of collective ordnance load required to kill, and the results going global. The fuel refineries, radar, ordnance, etc etc..