[Chainmail]

I'm a bit skeptical that a quadrotor of that size could heft a 15 pound machinegun and any appreciable load of ammo - and the recoil would throw that thing all over the place - but this will be the future of warfare.

The service battle labs are all discussing robotics for future wars and this is the most mobile, fastest, and most versatile way of delivering maximum hurt with the least loss.

[Jonty30]

I think the most immediate application would be small bombs. Since it can fly silent, it could position itself above enemy troops, drop a small bomb and fly back to base undetectable.

[FreeAtlanta]

I fear Nanite, biological and anti-matter weapons.

Civilizations and Empires crumble whenever a new secret weapon is revealed. What is China working on?