Model Master has a Russian Armor Green # 2129 that's a Semi-Gloss that I've used as a base color. Floquil Classic Enamel 303042, Xatracolor Enamels has an X811 and Humbrol Enamel has 114.
I used the Model Master paint for a T-72 on parade on Red Square and had it looking all new and shiny like. It looked right on for those tanks that were all waxed and shined for a parade. But, after a few years, I decedied to "take it to the field" and it's all dirty now.