It has been a while but I think all drones are affected even if you do move to a differant position. I have plane positions mapped in on my joystick & I may be wrong but from what I recall all drones respective guns are out in relation to the lead planes disabled guns. Typically at 25k I don't have to many people bothering to chase me that high & I usually will get in bound fighters with another gun.
i would not know why a drones gun would be disabled when the leads is it doesnt hapen with any other damage ive had drones be perfectly undamaged and my lead plane have four engines out feul leaks and dead guns.
i don't think this hapens i would love if someone would say so. as far as i remeber they don't.
thing is is that most people will want to attack the outside buffs first, because of the warping issue when the lead plane is destroyed causing collisions. i usualy expect my left hand buff to get attacked first if the guy comes in from high 5 oclock or some similar angle, i can usualy get over there and get a great shot angle i could not get from the lead plane. kind of like playing rock paper scisors.