If you do not want to get bombed in tank town, than have others provide fighter cover. Lets face it, when people are spawn camping in tank town, the best think to do is bring some 1000 pounders to kill them so that you can spawn.
The other option is to have other GVers bring Ostis and M-16's.
This is an Air, Ground, and Sea war simulation. As soon as you enter the MA, you are a target for anyone in their weapon of choice.
I personally see no problem with aircraft bombing in tank town, just as I see no problems with GV's assaulting air fields. It is all just part of the game.