The network rail test train would be a nice addition to tsw. Hauled by the class 73 that can run on diesel or third rail, it can be used on any modern UK route in tsw (realistically) or older routes (fictional) I've also seen the train being hauled by a pair of class 37's. And in other parts of the country hauled by class 43's also known as the flying banana. Most of the rolling stock is already present in tsw minus the class 73 so ideally wouldn't involve much work. The test train is crucial to keeping the uk railway network safe as it monitors the tracks as it passes over them for defects ie buckled or cracked lines, loose fasteners etc... Would definitely add some more realism to uk tsw routes. Present and future.
