This is a homebrew chapter combing elements of the Iron Warriors and the Death Guard

The main colours are silver and copper.

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:

I find the metallic sprays from GW tend to be a little on the transparent side, so an initial undercoat of black helps.

1. Prime the model lightly with Chaos Black
2. Prime over that with Leadbelcher

Silver (Armour Panels):

For grenades, replace Nuln Oil with Athonian Camoshade

1. Drybrush the model with Leadbelcher to even out the colour
2. Shade the recesses with Nuln Oil
3. Highlight fine points and sharp edges with Stormhost Silver
4. Add a rust effect sporadically with thinned Skrag Brown

Copper (Armour Trim):

1. Base with Balthasar Gold
2. Shade the recesses and around any rivets with Agrax Earthshade
3. Highlight fine points and sharp edges with Fulgurite Copper
4. Add an oxide effect sparingly with Nihilakh Oxide into the recesses

Black (Details - Armour Ribbing, Weapon Casing):

1. Base with Abaddon Black
2. Highlight the edges with Eshin Grey
3. Add points of Administratum Grey

Red (Details - Cloth, Wraps):

1. Base with Mephiston Red
2. Shade the recesses with Agrax Earthshade
3. Highlight the edges with Evil Sunz Scarlet
4. Add a fine highlight of Wild Rider Red
5. Highlight fine points with Fire Dragon Bright

Pink (Details - Flesh, Maggots):

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

Beige (Details - Teeth, Bones):

1. Base with Zandri Dust
2. Shade the recesses with Carroburg Crimson
3. Layer the middle with Ushabti Bone
4. Highlight with Screaming Skull
5. Add points of White Scar

Yellow-Brown (Details - Boils):

1. Base with XV-88
2. Shade the recesses with Agrax Earthshade
3. Layer the middle with Balor Brown
4. Highlight with Dorn Yellow

Green (Details - Lenses):

1. Base with Warpstone Glow
2. Shade the recesses with Agrax Earthshade
3. Layer the middle with Moot Green
4. Add fine points of Yriel Yellow