LOL... wow... GV concessions are being asked for left and right these days...
And this means.... what exactly? Just because the main focus of the game is aerial combat doesn't mean the aircraft are supposed to be able to smash the GV's under any circumstances with near-total impunity (which is what we had before).
Anyway, +1, I think this idea would be great.
It would increase the importance of GV's in the capture and defense of bases (really, I feel they should be of almost pivotal importance, considering that paratroopers dropped in the middle of enemy territory with no plans for ground reinforcments, even WITH air supremecy, wouldn't be able to hold a possition for more than about a week).
To steal an idea from somebody, personally I would like to see friendly troops occupying the buildings and some added defense works, that can kill enemy troops dropped in by air. Aircraft could only see that a building or defense possition is occupied (and the buildings that are occupied would be chosen at random when the town begins to flash) when it begins firing on the paratroopers or when a spotter aircraft/GV is within maybe 1000yds of them or something.
To capture the base, you just have to clear the town of enemy infintry and have 10 of your troops enter the maproom, rather than destroy a set number of buildings.