"I still don't know how the sniper knows that that the guy (lady?) is a Taliban who wants to kill him. Maybe the guy is hunting"

I am not a military person. But, I suspect sniper shots get "called in" from military sources who zero in on specific targets...like with artilary rounds, or air strikes. All are likely to do damage to the enemy and kill people. Unfortunately, wars and conflicts have always resulted in death and disctruction and kill nice people along with those less nice...not something I like to think of..and hope will end....but it's reality and unlikely to stop.