The Grot Commandos were created for the Grot Train Robbery. We never got to the point where they were unleashed on the table. Here is a shot from just before they were finished. At this point, I just need to pick out the details, add the base texture, and dull coat.
As for the Grot Train Robbery. There are some nice pictures here at From the dust of the Ancients and E-ville Armory.