I would like to suggest the Metropolitan line to be added to TSW 2. Route The Metropolitan line is 42 miles in length serving from Amersham and Chesham to Aldgate in the City of London, with branches to Watford and Uxbridge. In addition during peak hours (Southbound in the AM and Northbound in the PM) many services run as 'Fast' or 'Semi-Fast' with trains not stopping at certain stations. All-station services run during off-peak hours and on weekend services. Rolling stock used The S8 stock is used on the Metropolitan line is manufactured by Bombardier are 8 cars in length and Selective Door Operation (SDO) is used at certain stations where platforms are too short. These trains can reach speeds of up to 62 MP/H (or 100 KM/H) in some locations. I think it would be nice to expand on the London Underground with the addition of the Met line (or potentially other Sub-Surface lines such as the Circle, Hammersmith & CIty and District). I'd like DTG to consider this suggestion.
The Metropolitan Line is already available for TS2021 through Just Trains. They also have S7+1 and S8 tube stock available for it. Additionally, the Metropolitan Line is one of the prerequisites for the Virtual District Line route, which comes with a large variety of heritage London Underground rolling stock. Otherwise, TSW has a separate forum.