I wanted to get the cool little barricades from Kill Team: Octarius finished up quickly, but in a similar way to the official Games Workshop art. This is what I came up with.

1. Prime your barricades. I would recommend using a light grey, if you have one available.
2. Basecoat with a light-ish grey. I used Cold Grey , which is close to Dawnstone .
3. Apply a heavy drybrush of a lighter grey. I used Stone Wall Grey , but Administratum Grey is the Games Workshop equivalent.
4. Now give the barricades a quick coat of gloss varnish. I used Vallejo gloss varnish through an airbrush, but you could use a spray can like Munitorum Varnish .
5. Pin wash the recesses and around nuts and bolts with a brown oil paint. I used Burnt Sienna from the Winton series.
6. I did another pin wash, now with Burnt Umber. With this step I only popped oil paints in horizontal recesses and shadow areas.
7. Pop some Agrax Earthshade into the bullet holes, just to make sure they are extra dark.
8. Now I would advise sealing in the oil paints with another coat of varnish.
9. Drybrush all the edges and rivets again, lightly this time, using Ulthuan Grey .
10. Basecoat all of the mechanical parts on the back with a 1:1 mix of Leadbelcher and Abaddon Black .
11. Edge highlight the metallic components with pure Leadbelcher .