I previously suggested this for TS1, and I thought it would be a good fit for TSW2. Can’t remember how long the route is mile wise, but there are plenty of intermediate yards to start or stop the route at. Before you say anything about rendering issues within Chicago, they modeled San Francisco, didn’t they? Anyway, a NS mainline hasn’t ever been produced, and this seems like a perfect fit, lots of fast hotshot freights, manifest, auto, and a few coal drags, and plenty of switching in Chicago, Burns Harbor, and Elkhart. Equipment would be NS D9-40CW and a GP60 with a base set of rolling stock. With this, there’s are lots of DLC locomotives to produce (in classic DTG fashion to drain your wallet) and plenty of scenarios to choose from.