The color I used for wet brushing was Citadel Ironbreaker (or whatever the color is called now). All of the other paints I used are Vallejo unless specifically stated.
I then painted the viewing port (?) and what I'm calling the machine gun openings Dark Prussian Blue. Once it was dry I went over it with a blast from the past I bought in Germany in 1987, GW Blue Wash!
I then painted the rivets and bolts and ball bearings, etc. Brass.
I finished the painted by adding some Dark Blue, Sky Blue and then White to the ports to just give it some extra "reflection" effect.
Once that is dry, I add some splotches of white glue randomly, mix it with water and then dip the base in static grass. I wait about 30 minutes and then spray with a matt or flat protective covering.