Which trains are supposed to appear in the training center? I know you can only use TSW2 trains via the Scenario Planner, but beyond Kassel, Cajon and Southeastern, do other "new TSW3 trains" appear in the center outside of training modules? Confused.
No, Those are the trains that spawn their, only other way to “change” what’s their is through scenario planner. it would simply get too much for the game to handle to include all of them, or even several more.