This will include class 390 and 350 444 and 325 like some westcoast main line route and some new trains
A. Too long B. We are getting the section from Crewe to Manchester albeit set in the 1950s Try suggesting a route of around 40 miles and pushing it 70 miles if it has few stations
something like this yes but all the people kept tell me the route too long and it wont come to the game
Which is true, but spamming the board with too many similar suggestions is likely to draw moderator attention. Better to edit or append the original post rather than making more posts with the same thing (just a few miles shorter) As JealousSheep768 says, London to Birmingham is too long for one route in game. As I said on your other post Euston has too many different types of stock to do it justice in TSW (between Avanti, LNWR, LO and LUL) so you're better off picking somewhere else on the route that is plausible Unfortunately the game has more limits than allowances
Rugby or Coventry to Wolverhampton might be doable within the constraints of TSW or maybe Rugby to Stafford perhaps. Problem with the former is that Birmingham New Street and the eastern approach would be a huge challenge to build, though it has been done in classic TS. The latter is a bit of a route from nowhere to nowhere but a good thrash, albeit I would want it set in the classic AC era to drive Class 81 to 87 with tap changers plus Class 304 and Class 310 EMU’s.