My squad is 3Tanks and 3Trucks. 2 of those trucks have 3 2D/AT(Troop Bay S Anti-Tank) each, so that's a total of 6 troops of 3 (18 Drones). Not only are they expendable(don't use up supply) but they are also great recon, RPG support and bullet sponges for my tanks. I've also used the 2D/RC(Troop Bay S Recon) as... well recon to snipe enemies across the map with my S-92 tank destroyer, although that's less effective since long LoS is hard to get.
Oh and if you want your RPGs to get kills without getting wiped out, have you tried ducking out then back in cover(building corners, not inside), they fire off 1 RPG round scoring kills without receiving casualties. Quite satisfying to pull off :)
