WHat about a small Modification of the original idea...which I like, and dislike at the same time.
If we know where the LA-7, Spit,etc. Factory is, there would be a traffic jam of bombers overhead, dropping steel rain.
Now bear with me, as this may sound a tad gamey.
Let's say each country gets 10 A/C factories. Bomber goes in, and destorys one of those factories. By a random number generation, a RANDOM vehicle is selected by the game and is unavailable for use for X amount of time.
This would simulate the cloud of war, and the poor intelligence often available for target designators.
So one day, you bomb the factory....Boom, NO LA-7's for 2 hours or whatever.
2 Hours later,you bomb the SAME factory. Boom! No PT boats! (Crap)
2 hours later, same factory, Boom! NO GOONS!!! BONUS!! The country is crippled for 2 hours and can only take bases with M3's and LVTS!
The last one, I'm not 100% sure of. That may be very unbalancing, but it would be interesting!