I just thought it would be cool of we could have an armed variety of the quadcopter UAV's.
Maybe attach a light weapon on it of some kind.
The weapon would be fixed and suffer some significant accuracy penalties over long distances.
The tech already exists so "reality" fanatics can save their breath.
I just think this would be a really fun and useful resource to play with -- Not only to control for yourself but also to set up a scenario where you're being hunted by swarms of these things.
That said, I'm leaving you with a link: http://youtu.be/SNPJMk2fgJU