I have been awarded medal Idol for stunning one ghoul 3 times with one gal and capturing it, instead for capturing 3 enemies per one mission.
Save attached.
What the description says and what the game really checks can be two different things.
Tracking entire course of the battle, especially time-disconnected events is extremely complex... close to "not worth the effort".
In this case the game just checks how many times anyone went unconscious at any time (by your hand).
If it was the same or different unit is not checked... just like it is not checked if they died afterwards or not... try stunning 3 and then throw a grenade at them and kill them, you'll still get the award... and two more awards for killing them too
What I wanted to say is... it's complicated
Incidentally, this reminds me of something that is likely a bug: researching a prisoner type multiple times gives the can now enslave and rob message each time, or at least more than once, at least for me, should be up to date. I'm pretty sure it's not supposed to give that message more than once.
yes, this annoys me too... I have it on my todo list with low prio.