I figured out how to setup a mouselook script I downloaded, and now I can aim, but I have the gun barrel add object, arrow, and when it comes out, it sort of shoots and goes off in a different direction, just in the general area.
And whenever the arrow comes into existence from it’s layer to the game layer, it shows up real big, then changes to too small.
You might want to check the axis of your gun object. I had a similar problem and then realized that my gun’s axis was all screwy, so when the bullet object was added it shot off to the side. I’d try and make sure that both the gun and the bullet have identical axes.
Don’t know about the scaling thing though.
try selecting the gun and pressing Ctrl+A then select the arrow and do the same thing