Hmm. If they rely on the fighters' life support, the "kill the pilots" strategy becomes quite viable, and we could potentially manage to get all the a-wings. Rig the system to stop life support and open the cockpit, and they'll be dead very quickly.

Or, possibly, program the astromechs to do so, and just disable manual override, though I don't know if the behavioural inhibitors would pose some kind of problem.