The Panzer Brigade's machines are painted dark gray with black trim for most occasions. Generally, the Panzers prefer a "zebra stripe" camo pattern, when camo is used.
Per FM: Merc, page 73.
Trebuchet, Camo Specs (p 17)
Mercenaries Supplemental 2 (p 47)
Sunder, Mercenaries Supplemental 2 (color plates)
The insignia for Little Richard's Panzer Brigade is a crosshair superimposed on a triangle of fire. Per FM: Mercenaries Supplemental II, page 47.