Back in the autumn of 2014 I posted pictures of this T-70 (Plastic Soldier Company model) on my Facebook page. In recent days there has been some renewed interest in it and one viewer (hi George!) has asked me how I went about it. I've not got a great memory, but fortunately I made some brief notes.
I assembled it straight from the box except I replaced the gun barrel with a brass one from RB Models of Poland. I don't know where I got the crates that I added as stowage.
It was primed grey, using a rattle can, and then airbrushed with Tamiya Dark Green (XF61). I then did some modulation with, first, Lifecolor Russian Green (UA248) and then with Lifecolor Light Khaki (UA240).
I probably then gave it a coat of Klear and added the decals. Next came the first filter, made from Humbrol US Light Green (117) using enamel thinners. The second filter was made with Humbrol Brown (186).
The chipping was done using a piece of sponge and Vallejo Model Color German Camo Black Brown (70.822). Less is more! I probably painted the details at this point. I would have used various Vallejo orangey browns, well thinned, for the rust. It looks like I gave the wheels and tracks a heavy dry-brush with something similar, maybe VMC Flat Earth. I do know that the wooden crates were done with the Wargames Foundry Buff Leather triad.
Next, I probably did the pin wash, which I would have made from artist's Burnt Umber oil paint and enamel thinners. The highlight looks to have been VMC Iraqi Sand. Last would have been a matt varnish.
Hope this helps.