This may be of interest - "authentic" WWII Russian colours from Testors/ModelMaster. I think the authenticity may be questionable (even I can see some problems here, including the fact that MM doesn't even try to use accepted designations like AMT-7, 4BO, etc.), but for better or worse, at least one person on Scalemodels.ru seems to be recommending them. Despite the fact that the link comes from the Yak-3 decals thread, it's possible these are supposed to be modern aircraft (or even armour) colours, not VVS/GPW, although the link does say "wwii-russian":
http://www.relishmodels.co.uk/paints-and-washes/model-master-paints-1/model-master-enamel-paints-wwii-russian-.htmlJohn