A shepherd is only your friend until you get to the killing floor.

I have a few questions about these videos. Are the soldiers aware of the drones above them? Are these drones small and quiet enough that you wouldn’t notice them unless you were actively looking for them? Why are all these soldiers lying flat? It seems like that makes them much more exposed to these drone-grenade attacks.

Sorry if these questions have obvious answers. I am very ignorant about ground combat and drone warfare, just trying to learn.