A Primaris marine Infiltrator using the colour scheme of my own Imperial Fists Successor Chapter.

1. Basecoat the model in Averland Sunset thinned with Lahmian Medium (as you would with water). Leave the Right Pauldron grey primer.
2. Use Iyanden Yellow diluted with Contrast Medium (mixed 1:2), and go over all of the areas of armour you want yellow again.
3. Basecoat the Right Arm, Helm, and Backpack with Red .
4. Basecoat the Right Pauldron with Ulthuan Grey .
5. Coat the Right Pauldron again with White Scar .
6. Basecoat the underarmour/joints, the Bolt Rifle, grip of the Bolt Pistol, and any added grenades with Black .
7. Do the same for the Backpack's stabiliser vents.
8. Use Mournfang Brown (thinned with water) to go over the belt and leg straps (a light coat, thinned with water, will allow some of the yellow basecoat to still come through, giving a weathered leather effect, but you can go over these again with multiple coats if you don't want this effect).
9. Either repeat this for the Bolt Pistol's holster, or use Leather Brown .
10. Coat the antennaes on the Backpack and Helm, as well as the Backpack's exhaust vents, with Oily Steel .
11. Do the same with the barrel, magazine, and any other sections you wish of the Bolt Rifle. Additionally, coat the clips/rings of any added grenades and the clasp of the Bolt Pistol's holster.
12. Use Red to go over the optics on the Bolt Rifle's scopes (both ends).
13. Use Retributor Armour to paint the skull on the torso, the trim of the Left Pauldron, and the centre of the belt buckle.
14. Wash the Right Arm, Helm, and Backpack with Nuln Oil .
15. Wash the yellow armour with Seraphim Sepia (don't worry if you go over the black joints or brown straps, it won't do any damage!).
16. Wash the Right Pauldron with Contrast Medium to add a glazed/sheen look to match the rest of the armour.