Yes, the AI railroads can produce cargo out of thin air and make a profit. I enjoy controling more then 50% of an AI's stock. You can take control.
buy a locomotive and program the AI to run its trains on you home track and pay you to do so, etc.
I killed the atreides barracks.
Then took over his construction yard after he rebuilded the barracks.
I could build one time the barracks myself. Before the construction yard evolved into a harkonnen one.
I thought, lets upgrade the barracks. But the upgrade wasn't there except for a message. Upgrade started. I only selected the barracks.
Not only that, but it seems that I could build carryalls now. So i did.
I can't select infantry because I can't get into the menu of the barracks.
I'm pretty good at the basics but have a quick question about the AI in the game. Do they follow the same supply and demand structure that human players do? I feel like all they do is run passenger trains between cities and always score huge revenues from them. If I run passengers between cities like they did, my cities would be empty after 2 trips.