I guess an armed variant would work. Still like the idea of an eye in the sky and a separate attack system though. By the time you've added the hard points, beefed up the engines to deal with launch and the extra weight, added redundant weapons circuits with or without separate guidance circuits, upped the battery power to deal with all the extra circuits - it's putting on weight fast and there are way more systems to fail. And you know the God of Engineering is Murphy.
Trying to design things to do too much at once leads to all sorts of complications, and the end result is never as effective as a single purpose design. It's convenient, sure. A Leatherman multitool is convenient - but it's no where near as effective as a double ended screwdriver, a pair of pliers and a knife.