It does nothing else than ordering the AI to kill the enemy, the same way we could do it oin our own (expecting that ai firing through walls will be patched).

BUT

the corpses vanish that fast, that if we time the attacks a bit, the enemies will never find the bodies of their comrades and will never find out that we are killing them on e by one. That way, we can sit in a bush, sending out drones and kill all enemies without even getting close to the enemy camp.

If the corpses would not vanish that fast, we still could kill one or two enemies with snyc shot but than the chance that the corpses could be found and the camp alerted would also rise and sync shot would become less effective.

So i think nerfing sync shot is not the right way to fix the problem, increasing the remaining tiome of corpses should do the trick, together with the ability to carry them away.