To get nice soviet green for first step I use KHAKI DRAB XF-51 from Tamiya.
To saturate model I apply thin layer of RLM 82 from Gunze H. It's a good moment to mark first, substantial shadows (e.g. below fenders).
In this example, winter camouflage is made with use of popular hairspray technique.
What I use for it is:
-the cheapest hairspray I could find
-matt white Humbrol 34 diluted with Gunze Thinner
-old toothbrush and two different sizes of hard paintbrushes
First step is to cover model with hairpsray. To get equal layer is good to use airbrush. It dries fast so we start with white paint soon. I recomend to use enamel because it dries longer and it's easier to control results while scuffing paint. It is important to put it as thin layer.
There is no only one right way to scuff paint. Can put whole model to water and keep it there for different time or use wet brush, can use different tools, brushes, toothpicks etc. Most important is to get some practice.
At this moment we can add some little chips of basic paint with piece of sponge.
To diversify result of winter camouflage we can add some melting areas and leaks of winter paint. For them I use strongly diluted acrylic paints - Tropical Tan 2 and White from Life Color.
At finish we secure result with glossy lacquer, it will be good base for weathering. But this is a topic for next time.