Andy, I believe that what happened before this AD issue was noticed is that defending forces would target the drones as well as the fighter planes so resulting in a large loss of cheap drones but fewer FPs. This also allowed more FPs per round to be available to continue the attack.
Like I replied to Jonni, I have fought many major wars and C3 wars in my years here and using drones was always recommended. In fact I'm sure we could dig up many old forum posts where older war players instructed the new to do just that.
For some reason players are reporting that ADs behave differently now, (I'm trying to see a way to fit fighting level into this as a reason but cant find one), so something along the line somewhere has changed.
Please do a trial yourself and see. And then dig a bit further into it. Perhaps you could issue an explanation of why this now happening if it is a Q or unit size thing.
Respectfully, Crafty.
PS, glad you made it home safely.