"They can independently conduct surveillance of targets and make special maneuvers when they are fired at, which makes them actually invulnerable to small arms. Conventional serial produced hand-held grenade launchers and flame throwers are used as their payload," Yakunin said.
A copter is easily transportable and requires no landing and take-off strip or a special catapult as compared to drones. Moreover, it is dozens of times cheaper, which makes its loss in combat uncritical.