Firstly, thank you for putting this tutorial out here for us; it has made learning site operations alot easier than I would have initially expected.
I am attempting to make a terran unit (based on the science vessel model) with several auto-turrets attached to it, which I eventually want to fire. However, a feature of the science vessel unit is that it rotates. I followed your steps for the uberlisk closely to attach a turret to the science vessel model, but the turret does not rotate with the science vessel, giving it a detached appearance. The turret moves around with the science vessel, but it does not rotate with it. My biggest question here is: Assuming I followed your steps correctly, should the turret be rotating with the model? Or will I need to set up events on the turret to get it rotating with the science vessel?