Now imagine if Crytek hadn't buffed the Centennial 'cause with the prior fire rate getting a kill from that situation would've been even harder. :D

MegaDave, 1st shot may be miss, too close to the edge of the head, but far from the edge of the roof that I hit. 2nd was exactly in the head, but the bell has a broken hitbox. This place is broken. I rewatched this moment frame by frame many times, so I sure:)
Here are screenshots taken 1 frame before the shot:
https://imgur.com/a/Agsas82
P.S. This is the first time in 450 hours of play that I experienced this.
P.S2. Sorry for my crap english:)

and I thought it's me who can't shoot, and the game itself decides whether you kill a person or not, the game lives its own life

Seems like you were trying to aim at a single standing hair on their head.

hunt be like XDDDDD