Advice on painting Marston Mat Base

I suggest you use acylic paints.   It you don't like how it comes out, you can always wash it off, and start over.

Hello!

From the way you ask your question it shows you have at least some ideas how the painting works. I'd say it's time to break ot the tools and give it a try. Even if it doesn't work out the first time you can try again if you keep the paints thin and don't build up too much of a thick paint layer.

I'd say go easy with the gun metal and concentrate on grey and mud colour.

Hop this helps - good luck with your base and have a nice day

Paweł