I base coated the model with The Army Painter Wolf Grey spray Primer/Base Coat. I then masked off the areas which I wanted yellow and applied The Army Painter's spray Demon Yellow. I again masked off the areas I wanted black and sprayed those with a generic black primer.
The same metallic technique was used for the engine. I still need to add the rust weathering effects.
I was going to leave the edges of the drop pod doors Wolf Grey but I decided they would look better in the matching metallic.
This is the pod door prior to weathering.
After I finish the rust and oil staining on the outside I will apply burn effects to show the scorching caused when the pod burst through the atmosphere from orbit.