I uploaded the file PhazerFire2.blend I’m having trouble with the phazers firing erratically after I move the ship. It seems that the angular velocity goes blooey when the ship starts moving or rotating. I tried moving the ship object center where it wouldn’t get interfered with, but to no avail. :-?
Ship movement is controlled by the arrow keys as well as ASWD, which control pitch & yaw.
Since this is just a learning exercise, I’m not real attached to the game. But I thought I’d throw it out to the community before I abandoned it. :-?
I think I screwed up linking the upload here, but it is in the file arena. Maybe someone could give me a pointer on this, too. Thanks in advance. 
PhazerFire2.blend