I’m starting work on an Abrams and trying to find out how to get the “dusty” look that I see in the modeling mag.Its one thing yo have inspection ready looks, but I want to finish it like it came out the woods, or “driven like it’s stolen” (OH WHAT FUN DREAM THAT BE)[}:)][}:)]
Pastels, oils, washes. Check out the earlier threads throughout the site and I think you’ll find everthing you need on the subject 
Driven like its stolen??
That reminds me of that M-60 That was ripped off from the national guard armory in San Diego back in 1994.
I still love watching those scenes of the “Joy ride”, Talk about a real SUV - LOL
Check out this link for some ideas on how to finish your Abrams.