Well, for what it was...
...it was informative up to a point, but left a lot more questions than answers. The tutorial, while providing a lot of 'decent' information, didn't really give anything tangiable. At least to the extent of providing anything to work off of. It was more like a "Swift 3D Tutorial of a Chain-Gun" rather than a Swift 3D General Tutorial, you know? It just seemed to leave a lot of stuff out. But I like the way you presented it, it was very easy to follow. If you could maybe add some more information to it, like how to make a non-descript person? I think that's what a lot of people are looking for, at least to start off with.