I agree with your long standing position on Factories Flash, and it is a very practical way of playing IMO. I don’t think that’s what their looking for though.
The concept of giving IPCs for an IC sounds pretty good, but could bankrupt a power like Russia that generally is force to give up such territories (they have 3 minors that generally fall to the axis). Italy is also forced into a predicament of sacrificing N Italy (Major IC) to hold on to its capital. If they also had to give up even 10 IPCs for losing control of the N Italy Major production center they might as well pack it in. Keep in mind that it does get down graded (not that Italy could build that many units if on the hot seat LOL)
If you were going to do a capture IC gain IPCs though I would have a set amount for a minor/major, then maybe a bonus amount if it is also a capital. I wouldn’t want to have to start counting adjacent territories etc….
I would be in favor of setting a limit on IPCs surrendered to the conquer if a capital is taken. Maybe a straight 20 IPCs or so. Allow that power to keep any additional IPCs saying they smuggled out part of the treasury before things went south. If that power still has factories available then they can continue to collect income and produce units from them. No IC on the board then they work like China and only produce inf until they recover an IC (or can buy one?)
Another way would be let it be more random using dice.
Lose minor roll 1 dice, enemy collect that amount
Lose Major roll 2 dice, enemy collect sum
If it is also a capital you roll two more bonus dice
So minor capital rolls 3 dice, major capital rolls 4 dice, enemy collects sum (you keep the rest if any)
Here’s a different approach that might be be cool and keep the dice rolling. If you loose your capital you roll 2 dice, the sum is what you managed to smuggle out, the rest is turned over to the enemy (min 2 ipc, max of 12 ipc).
I also think there should be a scorched earth policy BTW, if you lose an IC.
minor IC roll 1 dice (place that many damage markers)
major IC roll 2 dice (sum is amount of damage)