No such thing as "true" common sense, Shogun

I do agree with you, though; I wouldn't mount anything less than an LMG on a drone for my own sake at least. Not like it'll be any less obvious than one with an AR mounted, and they're both likely to be fairly illegal in terms of where you'd have to bring them.
The way I see it, drones are either all out attack (in which case you'd put a belt fed LMG or heavier with 500 rounds on it), or recon (i.e. no weapons at all, because the drone isn't big enough to support one). I just don't see a reliable way of dragging around drones with highly illegal (F type, no, not the Jag...) weapon mounts in a city like Seattle, unless you're touring the Barrens.