Hi Eugene,
I strongly believe you will be more than happy when your model is finished and you'll keep me ashamed
As for weathering. This is the picture of all things I used:
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And now I will try to recreate the steps I performed:
1) gloss varnish under decals, decals and then gloss again;
2) I made a pin wash with Vallejo 73203 (Umber Shadow);
3) as pin wash was acrylic I followed immediately with dot filter (various of oil paints you can see to the left. In first run I skipped buff) - used some white spirit to work with dots.
4) I applied satin varnish because I repeated the dot filter technique - this time with extensive use of buff colour (that gave me some nice looking subtle streaks).
5) again varnish - this time matt followed by streaks made with AK interactive AK024 & AK069 (I used brush with thin long hair - sorry don't know what's called).
I used several layers of varnishes to secure layers I found fitting my requirements (you know, just in case, if you mess up next layer you can wash it up without damaging job well done
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).
Later I made some wet effects and weathered tracks' metal parts with vallejo's and mig's rust washes (it was rather drybrushing as I knew I would spoil these effects later with mud).
And mud/dust - made with mig P033, P028 and Mirage P008 supported with AK048 Pigment Fixer.
Hope it helps you a little bit
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