While I actually agree with your point, I have this image in my mind if a "Simpsons-esq" scene like "Mr Burns, we've lost 20% of our drones" "Well then... Sen

While I actually agree with your point, I have this image in my mind if a "Simpsons-esq" scene like "Mr Burns, we've lost 20% of our drones" "Well then... Send more drones!" But honestly, if the drones are operating as a swarm then a downed drone could report it's last known location to it's peers for easier recovery.