This is my take on the colour scheme of the Tainted, an offshoot warband of the Death Guard.

The main colours are green and beige.

General Information:

My general method is to lay down all the base colours for the model, then do all the shading in the recesses before moving on to the highlights.

I don't own an airbrush, so the recipe will mainly consist of brush on paints.

Priming:

1. Prime the model lightly with Mechanicus Standard Grey

Beige (Armour Panels, Teeth):

1. Base with Rakarth Flesh
2. Shade the recesses with Agrax Earthshade
3. Highlight the edges and around some of the trim with Pallid Wych Flesh

Green (Armour Trim):

1. Base with Deathworld Forest
2. Shade the recesses and around and rivets with Agrax Earthshade
3. Highlight sharp points and fine edges with Nurgling Green

Brass (Details - Metal trim, Knee pad, Backpack details):

1. Base with Balthasar Gold
2. Shade over with Agrax Earthshade
3. Highlight fine points and sharp edges with Stormhost Silver

Pink (Details - Cloth, Wraps):

1. Base with Screamer Pink
2. Shade the recesses with Agrax Earthshade
3. Highlight the edges with Pink Horror
4. Add a fine highlight of Kislev Flesh on high points

Black (Details - Cables, Weapon casing):

1. Base with Abaddon Black
2. Highlight with Eshin Grey
3. Add fine points and scratches with Dawnstone

Brown (Details - Leather Pouches):

1. Base with Rhinox Hide
2. Shade the recesses with Agrax Earthshade
3. Roughly highlight the edges with Skrag Brown
4. Add a fine highlight of Ushabti Bone

Silver (Details - Weapons, Grenades, Backpack vents):

For grenades, replace Nuln Oil with Athonian Camoshade

1. Base with Leadbelcher
2. Shade over with Nuln Oil
3. Highlight the edges with Stormhost Silver

Blue (Details - Lenses):

1. Base with Sotek Green
2. Shade the recesses with Nuln Oil
3. Layer the middle with Temple Guard Blue
4. Add fine points of Baharroth Blue

Horns:

1. Base with Rakarth Flesh
2. Layer the top half with Skrag Brown
3. Shade over with Agrax Earthshade
4. Highlight the lower half with Rakarth Flesh
5. Add fine points of Pallid Wych Flesh

Runes:

1. Base with XV-88
2. Layer the middle with thinned Khorne Red