You need to follow the bug reporting guidelines. You have provided a .capx but don't say what the problem is.
Looking at it, all I can see is that the bullet is not having it's angle set correctly. If, after spawning a bullet, you set the bullet angle to 'debugAngle' then the bullet will move at the same angle as the gun is pointing.
Is this what your problem is? If so, it's obviously not a bug.
Maybe it would be best to post in the 'How Do I' section, before posting in this section. That way, other users can help determine if you really do have a bug or not.