In Train Simulator, this route has brought me many happy memories, however, I believe that it deserves an upgrade. Crucially, the length of the route is reasonable for TSW, with a length just short of 40 miles. The route would include the class 465 networkers, class 375/377 Electrostars. The route would include the "Metro" services to Orpington, and possibly Sevenoaks. If possible, the route could also bring the advent of the class 700 to TSW with the introduction of Thameslink services. Hopefully this route is of interest to others as well.
I love this route, great suggestion my one issue Is that I dont feel DTG would include the branch to Orpington, as this would also then require the Catford Loop.