Head-shots are not instant kills?

[EyelessHunter]

no u

 

[Kami]

I hit a guy from point blank yesterday twice in the head with an mp5. 89 damage. It's a bb gun

try it irl

 

[FeartheReaper]

helmet and a fail gun

 

[WheresWaldo]

i had to shoot a guy 5 times in the head with an m4 to kill a guy once
i dunno how that managed to happen