Additional information i have is that after changing the position of the coDriver proxie so it faces backwards, is higher compared to the wheels and therefor can not collide with any wheel hitbox, the problem with the codriver can be avoided. The problem with collision when entering a vehicle remains the same.

Entering a vehicle causes the character hitbox to collide with the wheels hitbox

After more testing i found that the impulse is applied when the person entering the vehicle is moving physically through the wheel of the running vehicle. I mean if the animation played to step into the vehicle would cause the playerbody to collide with it.

The issue occurs with modded vehicles and not only with this one and not only with vehicles made by me.

Thanks Geez for lighting this up for us, its much appreciated

I just tested this on my own Server with 55% absorbing Plate Carriers and 9x39 + 9x39 AP. Base damage of round at my Server is balanced to 75 for both AP and not AP variants and all rounds are killing to the torso with 3 shots fired.

Can confirm. Bullets with larger then Vanilla caliber have a good chance to crash clients whenever they fly through the players network bubble. Comes also into effect when pop is low but then happens less likely