My opinion with the player wipe: Go ahead and do 'er. I know I was a big opposer before, but I'll get through it. A fresh start for everyone could do some good.
The train: Take off that damned shield. Removing it would make it MUCH more susceptible to CDs. Which, I have found are totally useless against transports, and whatnot. The SHIELD is what keeps the CD from effecting the train/transport.
Remove the shield from the transport, large transport, train, and large train, and I believe we will solve the CD immunity issue.