Primer

1. Used Mechanicus Standard Grey from a spray can.

Base coat

1. Use some kind of black paint to paint the guns, joints, and hands. I used either Black or Abaddon Black thinned sufficiently
2. Use Leviadon Blue to shade coats, trousers, and sleeves. If you want a lighter blue then go with that, this shade looks almost black without highlights

Metal Areas

1. Use Runelord Brass for the armor and helmets, including the shield. I also painted the drone during this step.
2. Use Leadbelcher for the metallic gun bits and boot treads
3. Go over all the metal surfaces with Nuln Oil . Don't go too dark on the brass areas.
4. Go over just the brass areas with Agrax Earthshade . Try to avoid hitting the blue/metal/black areas

Coat trim and Helmet

1. Use Celestra Grey to paint the trim of the jackets as well as the goggles
2. Use Ulthuan Grey to highlight edges of the coat trim and the goggles.
3. Use Gryph-hound Orange or similar for goggle lenses