This is my take on the paint scheme of the Blood Disciples warband, formerly the loyalist Emperor's Wolves chapter.

The main colours are grey, gold, and red.

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 with Mechanicus Standard Grey

Grey (Armour Panels):

1. Lightly drybrush over the model with Mechanicus Standard Grey to even out the colour
2. Shade the recesses with Nuln Oil
3. Highlight the edges with Dawnstone
4. Add a highlight of Administratum Grey to fine points and sharp edges

Gold (Armour Trim):

1. Base the trim with Retributor Armour
2. Shade the recesses and around any rivets with Agrax Earthshade
3. Highlight fine points and sharp edges with Stormhost Silver

Red (Details - Helmet, Cloth, Wraps, Gun Casing):

1. Base with Mephiston Red
2. Shade the recesses with Agrax Earthshade
3. Highlight the edges with Wild Rider Red
4. Highlight fine points with Fire Dragon Bright

Silver (Details - Weapons, Chains):

For grenades, replace Nuln Oil with Athonian Camoshade

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

Black (Details - Armour Ribbing, Cables):

1. Base with Abaddon Black
2. Highlight the edges with Eshin Grey
3. Highlight fine points and sharp edges with Dawnstone

Blue (Details - Lenses):

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

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