Maybe this chart could help a little
http://www.dakkadakka.com/wiki/en/Paint_Range_Compatibility_Chart Automatically Appended Next Post: This is the Soviet Army Paint Offer. It contains 8x Vallejo Paints from the Panzer Aces range and and the Model Colour range: -
Khaki Grey (Vallejo 880): Uniform and sidecap Flat Red (Vallejo 957) Epaulette Piping and sidecap red star Black (Vallejo 950): Boots Russian Green (Vallejo 894): Helmet Khaki (Vallejo 988): Webbing English Uniform Brown (Vallejo 921): Bedroll/greatcoat Japan Uniform WWII (Vallego 923): Padded tunic or trousers German Camo Medium Brown (Vallejo 826): SMG and rifle ammo pouches
This is off the Warlord games website of what colors they recommend