Two scenarios summing up to 2 hours of total playtime taking 802015 from London Paddington to Hereford.

Requirements:
~ oliver168002’s Western Mainlines Electrification Project

~ SpeedyPete202’s XCRoute Birmingham to Bristol

~ DTG’s South Wales Coastal
+ Chris Horsfield’s Colas Class 70 Fix / Full Package*
(May require the Discontinued version instead)
+ Armstrong Powerhouse’s Class 175 Enhancement Pack 2.0
+ Major Wales Design’s Class 175 Revamp Pack

~ Armstrong Powerhouse’s FSA/FTA Wagons

~ JamesIvell’s Night Riviera Mk3 Coach Pack

~ JustTrains’ S7+1 Stock
+ Jerome94’s S7 Circle & Hammersmith Destinations

~ Oovee’s Class 57
+ Superalbs’ Class 57 GWR Reskin

~ DTG’s Class 66 EWS V2.0 & Freightliner V2.0
+ Armstrong Powerhouse’s Class 66 Enhancement Pack
+ Clowes’ Class 66 GBRf 2018+
+ JamesIvell’s Class 66 LED Headlights
+ Leander’s Class 66 No Driver Pack

~ Oovee’s Class 70
+ Rfletcher72’s IOA Network Rail Wagon

~ Superalbs’ Class 166 GWR Reskin

~ DTG’s Class 170
+ Armstrong Powerhouse’s Class 168/170/171 Enhancement Pack
+ Clowes’ Class 168 Chiltern (by Arriva) Reskin
+ Clowes’ Class 170 West Midlands Trains Reskin

~ DTG’s South Wales Coastal
+ Armstrong Powerhouse’s Class 175 Enhancement Pack 2.0
+ Major Wales Design’s Class 175 Revamp Pack

~ JustTrains’ Class 220/221 Voyager (2019+)
+ Leander’s Class 220/221 Updated Consists

~ DTG’s Great Eastern Mainline
+ Major Wales Design’s Class 360 Heathrow Express Reskin

~ DTG’s Chatham Mainline (Any of the Three)
+ Armstrong Powerhouse’s Class 377/379/387 Enhancement Pack

~ DTG’s Portsmouth Direct Line
+ Armstrong Powerhouse’s Class 444/450 Enhancement Pack

~ DTG’s Class 801
+ Armstrong Powerhouse’s Class 800-803 Enhancement Pack