I have an Elf Rigger a goodly part of the way into the storyline (heading into the final mission, as a matter of fact). Ii don't do a whole lot of shooting with him, but if I need significant movement, then I deactivate one of my drones. I haven't looked over the forums a whole lot, but I've experienced a similar issue I have seen a couple posts about: with my skills, my drones should have 3 AP each, but they seem to have it sporadically.