I have a couple of questions for you:
1. What rules are you using got moderns?
2. I have GHQ 80s Soviets & Brits on order. My impression is that soviet armour had a darker green than you have used.
Is your colour "correct"?
We are using RF with our own gun and armor adaptions based on a D10 system.
I've seen as many shades of green on Modern Soviet armor as there are colors in the rainbow........ I opted for this treatment to represent vehicles that have seen a bit of duty and aren't fresh out of the factory.