I have seen personally hundreds of these flats per train roar and screech south at full speed. I did not take pictures because of the obselete attitude towards loose lips sinks ships back in the Iraqi Invasion of 2003 when the rail activity was at it's peak.
It seemed every flat that can carry something of all kinds, colors lengths etc. Roadnames too. Quite a few were DODX And they seemed some to be relics from the past barring interchange limits. They were needed and fast.
I have seen some loaded military cargo, generally with the weapons removed and small crates, tarps and treatment all over the vehicles of different kinds.
Today it is common to see at least one to three Bradley being hauled north sans guns and external fittings. The 18 wheelers would take them north on low boy flats. The condition of the APC's showed battle and wear. And probably are headed to either Ohio or Kentuck for rebuilding or scrap.
You tube would provide a friendly user viewing for these military trains.