Yep, getting close enough to use an AT-4 was never an ideal situation but I could see drones doing handoffs to the fire and forget platforms.
I have seen several videos of combatants in Syria running up to a tank to destroy it. In one, a guy goes to put a grenade down the barrel of a tank. He has some technical difficulty, so he leaves and comes back a minute later to seal the deal.
Amazing that the tank crew had zero awareness of a dude running around outside their tank multiple times.
I suspect hash was involved, on both sides!