I have a helicopter that i want to mount guns just under the wings, but when i shoot the gun the bullet messes with the helicopter and makes it move. I put the mass up in the rigid body settings and that solve the helicopter moving around but the bullet wants to go downward now and bounce around. I’m wondering if there is a way to make the bullet have no effect on the helicopter but still hit other objects.
If you aren’t already, you could try spawning the bullet from an empty placed outside the helicopter collision bounds just in front of the gun barrel. In this way, the bullet should have no effect on the helicopter whatsoever.