Women and children can still carry guns. You seriously never heard of child soldiers? Women and children does not imply neutral parties.
Saying only psychopaths regret killing is a joke. Throughout history it was actually a badge of honor. Now, with media, we have much more empathy towards other groups so it hurts more.
But as a I already pointed out, “regret” and “hurt” is totally different. You can know pain from killing, but not regret it in the slightest. Why the fuck would you regret killing someone trying to kill you and your men? That’s just stupid.
The rate at which soldiers miss on purpose is unknowable, but it’s highly doubtful most do this - especially when in real danger. Almost no one would miss on purpose if their life is on the line. And snipers like Kennedy I presume pretty much never miss on purpose. They’re too dedicated, too programmed, and their job is too important to the lives of their fellow soldiers.