I said -1 cause there are systems in affect to let you know ahead of time that there is an attack coming. If that country fails to realize that, it's that country's problem. Put it in, it doesn't matter, we will still find ways to take the base. But because you cant defend your base shouldn't be a reason to put in more AI.
The problem is that nobody wants to defend, even the Bish. If the Bish defended then they would never lose a base, and they do, quit often too. Squads like yours are a major contributor to the problem of hordes. I understand you guys like to take bases, I understand you like to fly together, I understand you like to win the war, and THERE IS NOTHING WRONG WITH THAT <----- notice this line! The problem is you don't need 30-40 guys to do it like posted here
http://www.youtube.com/watch?v=LomIW64PrbQ&feature=youtu.be one of your missions to a V base.
The inverse would of course be a dynamic zone limit. Given the density of opposing ac you are limited to that number plus # (15?).
When the zone limit is hit you get a "sorry all aircraft from this field are in use" message.
This would limit missions agin undefended fields to the # (15?) untill more defenders upped.
Basically it would limit horde to defenders plus # (15?) in any zone.
Of course stuff could up from one zone and travel to another.
This way the server does not have to drive multiple AI aircraft but local game play is balanced.
HTC has ALWAYS come down on the side of
"not restricting players from doing what they want". They PAY to play so HTC doesn't want to restrict that play. While running out of planes for a zone and helping to cut down on the hordes it is too restrictive. Can you imagine the whines on the boards about not being able to fly with their friends?
The problem is that people see a flashing base jump to it, launch and see a horde coming in. Unless you have 10-12 guys that do nothing but up with you as you jump from base to base there is no way to stop a horde.
Maybe a base realignment. Put all the ord bunkers in a line across the base, increase their point value, and make them in small groups/clusters. This way you get more points on a single pass dropping ord than you do dropping one bomb in the center of each town.

Milkers are happy, bombers get a target worth the time, and porking a front to slow the horde is an added benefit.