[Jaxson]

How to get the modifier?

Spawn the actor (ax, ay, az) and the gun (gx, gy, gz) at the exact same coordinates then move the gun so it fits into his hands. X modifier is ax-gx, y modifier is ay-gy, z modifier is az-gz. This is valid when the facing angle of the actor is set to 0. If you want to change the facing angle you will have to do more math.