i think that this type of robots (distributed machines) is to be expected in future.
a swarm of flying small units cooperating, moving in formations, perhaps shooting or carrying different orders.
'internet of things' on small or other scale(s).
See also: Stitie Machine 1.1 'Sunsail', Nanite War Computer Game,
Checking Field & Tactics, How to defeat modern machine?, Tactical Forms & Formations in 3D.