@Ekfreet
You do realize there are non-combatant officers, medical personnel, the coast guard (yeah I think they're military???) who will never really kill anybody unless by accident. Also, I'd say ISIS terrorist are humans. Extremists and terrible human beings, but still humans. Should we treat terrorists kindly? No, not really. Should we recognize they aren't just a black and white evil being who we should remorselessly kill? Yes (doesn't change the fact that they should be killed though).
Also the German military has a rule in which German soldiers can refuse orders that they believe violates the dignity of humans. People can be terrible or kind, this one shot sorta highlight this fact and I think you just picked up on the kindness part in your comment (what I mean is that the one shot also addresses the dark side of the situation but not as explicitly I guess?).
I like this one shot cause it shows mercy, but at the same time shows the fucked up fact that the soldier was supposed to the kill civilians.