This is a total of 24 points.
First, welcome back to the Challenge, Valery!
The trucks are very good, and always useful on the tabletop, but that ZIS-30 is quite an interesting (if ungainly) looking vehicle. As you point out, it was astonishingly rare in light of the typical Soviet production methods of this period. Something you don't normally see on a player's roster.
I like the weathered green that you've used for these models, it seems a little lighter than what you normally come across, I like how they 'pop' to the eye. Great work!