Made a little progress on this one. Started out with a dark gray solid paint factory(ish) paint job but I didn't like how it looks. So, I redone it in this mottle of Nato Black and Slate Gray. The window armor was base colored in a mix of med Gray and Chrome Silver from Tamiya. That little nugget I picked up from one of Marcus's recent articles in MIM. The rust effects are entirely vallejo acrylics done with one sponge and two brushes.
Constructive comments are always welcome!