Use Violet Brown. Also I like US olive drab washed over with Violet brown. Use Future Shine to thin the paint to milk consistency and it will not dry causing dry tip. If you use water it will break the paint or cause dry tip. When done flush the brush with water then use Windex. Make sure you dry your brush before storage. Use testors dull coat spray cans to seal the paint job. Do not use the Valejo matte it will eventually turn white.

I spray at 25-30 psi with a .3 needle and tip. If I use a .1 or .2 I'll go down to 18-20. With an Iwata CS pro for the .3 and an Iwata HP pro for the .2.

German colors are Middles stone, German reflective green, and German medium camo brown. Red oxide is 2/3 hull red and 1/3 chocolate brown.

British armor is Russian uniform green. I know it sounds wrong but it is the closest to the green they used. I like to use that at 1/3 mixed with 2/3 violet brown on my UK miniature tanks. But @ 100% on guns.

I then wash down select areas with Model color Umber Wash for that dark muddy / sooty build up. Do not wash the entire tank with sepia. It will turn it Olive Drab. You can wash it with black wash but be sure to thin down to at least 50%.

If you like the paint chipping look Valejo works well with hairspray. On US armor I like Black Grey under the chip areas.