In Train Sim there is a route for the Frankfurt U-Bahn which is my favourite in the whole game. I thought putting in a stadtbahn system in TSW2 would be cool. I think the entire network should be included, just like in Frankfurt. There are 8 lines. U41 Horde to Lunen, U42 Grevel to Hombruch, U43 Dorstfeld to Wickede, U44 Marten to Westfallenhutte, U45 Hauptbahnhof to Stadion, U46 Brunnenstrasse to Stadion, U47 Westerfilde to Aplerbeck and U49 Hafen to Hacheney. Train Stocks are the B80C/6, B80C/8, and the NGT8. Random fact, the U46 Is the only line to run completely underground (excluding the U46E).