My personal formula for painting Word Bearers Chaos Space Marines

Traitors Red: Armour and Cultist Cloth

1. Prime the sinister lad with Chaos Black or another black primer of your choice.
2. Basecoat the miniature with Gal Vorbak Red (I use an airbrush).
3. Shade the miniature with Nuln Oil , if you have also basecoated the Grey Black or Metal areas shade those as well.
4. Drybrush/Highlight the armours hard edges and panels with Word Bearers Red , focusing the drybrush on the high points.
5. Finally, edge highlight the model with Wazdakka Red .

Cloth and Fabric

1. Basecoat any cloth or fabric areas on the miniature with Mechanicus Standard Grey .
2. Shade the areas with Nuln Oil .
3. Highlight the model with Skavenblight Dinge
4. And edge highlight with Stormvermin Fur .

Bones and Parchment

1. Basecoat the areas with Rakarth Flesh
2. Shade with Agrax Earthshade
3. highlight with Pallid Wych Flesh
4. Edge highlight with White Scar

Brass Accents

1. Basecoat with Warplock Bronze
2. Shade with Agrax Earthshade
3. Highlight with Brass Scorpion
4. Edge highlight with Runelord Brass

Pipes, Undersuit and Gun casings

1. Basecoat the desired areas with Abaddon Black .
2. Shade with Nuln Oil
3. Highlight with Eshin Grey .
4. Edge highlight with Dawnstone .

Optionally, you can highlight with Skavenblight Dinge and Stormvermin Fur for a more grimy look to the pipes.

Armour trim and Metalics

1. Basecoat with Iron Warriors .
2. Shade with Nuln Oil .
3. (OPTIONAL) Highlight with Ironbreaker .
4. Edge highlight with Stormhost Silver .

Leather and Wood

1. Basecoat with Dryad Bark
2. Shade with Nuln Oil
3. Highlight with Gorthor Brown
4. Edge highlight with Baneblade Brown