I really think knowing that there are London stations like Stratford and barking, and on southeastern high speed you speed past Rainham and Dagenham dock heading in n out of St Pancras international, It makes sense to involve a c2c route in tsw6 which involves the class 357 and class 720s it would add more to other routes and would be a fantastic route for players like myself and others who’s local to c2c the line the route VIA Tilbury is 26 miles and takes roughly 50-55 mins depending on the amount of stops, Direct via Basildon is roughly 37-45 mins
Welcome to the forum. There's a very detailed thread (among many requesting this route) here: https://forums.dovetailgames.com/threads/c2c-london-tilbury-and-southend-line.79395/