6x6: pigments...

...applied to the lower hull and the tyres given their base coat and a very subtle drybrush with a slightly lighter shade.

I've also started fading and staining selective areas of the paintwork on the upper hull with Mig filters. it is just about visible on the reinforced armour on the front of the hull...

...and on the rear, upper-hull hatch although I've also blended blue and grey filters on the sides around the vehicle numbers.