Here's the victim. I had weathered this car before, but I never really cared for the results of the work that I had done on the roof. I also thought I'd try to do a little more on the rest of the car, so I've faded the blue paint a bit, and added graffiti and a couple of small details to the car's appearance.
Here's the boxcar, after it's been re-weathered. I patterned the rust and graffiti locations after a photo of another National Steel Car GTW boxcar that I found on the internet.