My friends, I'm back from my vacation in Jordan, and I took some reference images for you. These trains are parked in the Wadi Rum desert and show some really nice weathering effects - especially paint chipping, dust build-up (when combined with moisture), and wood deterioration.
I started to really miss the workbench toward the end, and I'm glad to be back home. I'm still going through things that I missed out while I was away, but I'll be back soldering the SLAT armor on the Puma tomorrow :)