Headshot Hitbox is Misaligned and Inconsistent

the headshot hitbox did not accurately represent the head, sometimes being too high or inconsistently placed. Specially when you hit the enemy head, but on his nose or above it, the game registers it as a bodyshot.

Furthermore,

PSR sniper rifle is a downgrade compared to the M2010 ESR:

The PSR sniper rifle is the last sniper rifle to unlock, given its difficulty in unlocking it (150 kills from 200 meters or above), but it has less bullet velocity (937 m/s) and it has no modifiers to increase its bullet velocity. When you compare it with the M2010 ESR, the M2010 can have 1125 m/s bullet velocity, when you combo it with the ragefinder, you can defeat any enemy from any distance and faster than the PSR, making the default sniper rifle the best sniper in the game, and the hardest sniper rifle to unlock (PSR) a useless sniper rifle. BUFF PSR.

PSR Sniper Rifle, hardest sniper rifle to unlock, but has the lowest bullet velocity and no modifiers to increase it? The Bullet DROP makes no difference since you have the range finder.

The default sniper rifle in game, and it has the highest bullet velocity in game with its modifier, why unlocking the PSR then? The Bullet DROP makes no difference since you have the range finder.