I would reccomend posting more than the download (where did you get them, an RTB mirror, or here?)
So, I thought of another way for this. I attempted to turn a bot datablock into the train, then you could ride them. But you can't. once you get onto the bot train, it will alarm then launch you and itself.
this happens with all botsthey don't like being ridden onso you have to turn it's AI off
or use a horse to start with, they tend to be pretty tameit was fun to use rot's zombies and turn them into horses when they spawn, because then they'd try to follow players near them but wouldn't actually do damage
just spawn a horse from a vehicle brick and use events to turn the horse into a trainbam