Instead of jumping into the battlewagon and risking it, I am practicing on my flakkatrukk.
Mainly I'm trying out the hairspray weathering/rust effect.
First, a heavy drybrush of boltgun metal.
Built up the rust with scorched brown, vermin brown, and blazing orange.
Hairspray sprayed on with the airbrush, and salt sprinkled on while wet.
Ran out of hobby time tonight so will be spraying the main color in a couple days..tomorrow is game night.