Hey guys,
when I saw the asset for the Auto-Mortar turret I set myself the challenge to model and texture this myself (no offense meant, Ben. Nice job motivation me! 
).
This is what came out of this:
If you want to use this model for yourself, feel free to do so. I am providing it under a Creative Commons license here:
https://drive.google.com/file/d/0B5R4WJWT0281cUFUUkdxWm83bE0/view?usp=sharing
It includes a readme file that hopefully explains everything you need to know for the setup.
Hope you like it and keep it up with the course.
Cheers
Michael
great job!