For my Nomads I wanted to avoid the traditional red/black/white colours that are often seen on them.
I started with P3 Coal Black washed with Nuln Oil, then highlighted back up through Coal Black, Kabalite Green and Sybarite Green.
Lights and lenses are Trollslayer Orange, washed with Agrax Earthshade then re-highlighted with Trollslayer Orange and a 50/50 Trollslayer Orange/white mix.
Grey ares are painted with Celestra Grey and highlighted with Ceramite White. Nuln Oil is placed in the recesses.
Cream areas are painted with Ushabti Bone, washed with Agrax Earthshade and highlighted with Ushabti Bone.
Weapons are simply painted black with select parts painted in Leadbelcher, then the whole thing is washed with Nuln Oil.