This Sci-Fi rusty turret is:
Rigged (Skeletal mesh with Vertx Groups defined)
Contains one animation (Turn and shoot)
Is UV unwrapped (UV 0)
But I still hope this can help someone as an asset for their project 🙂
However you may need to adjust some details in blender before exporting so it will work with Unity or UE4. I so far have had little luck making everything work.
Sketchfab does not display the animation for some reason.