Looking forward for your artwork! I have a couple of ideas to improve this viewer. The updated models consist of separate parts, so this would allow for rotation of individual parts. Take scorpion for example it can switch to those rockets which are hidden by default. It will probably take a while before I work on such feature though.

In addition to the given tools I made a little program to view the newer models: https://github.com/TankiSandbox/Tools. This also removes the Adobe Flash player dependency, which should not be used anymore. This might be useful for artists or video creators ?