The route from Stoke Works Jn, just south of Bromsgrove, up to Burton-On-Trent is around 50-55 miles long and has a mass of freight and passenger action on it. This route would be set in the early 1990's, with freight dominated by Class 37's, 56's and 58's Proposed Rolling Stock Class 37/0 in Railfreight Metals livery Operated metals services towards Wales Class 47 in InterCity Mainline livery Operated CrossCountry services as well as light engine moves to/from Saltley depot Class 56 in Railfreight Coal Sector livery Operated Coal services alongside Class 58's Class 58 in Coal Sector livery Operated coal services alongside Class 56's Class 310 in Regional Railways livery Operated services along the Cross City before introduction of Class 323's Possible DLC Class 43 'HST' in InterCity Swallow livery (Valenta) Operated CrossCountry services alongside Class 47's Class 323 in Centro (Regional Railways) livery Operated services along the Cross City from mid 1993
Used that route regularly in period. You might also want to include the Class 156 which ran from Nottingham to Cardiff and the Class 304 which worked alongside the 310.