You are tasked with driving 220019, working 1V85 to Reading, as far as Doncaster. A late running 1EO4 to London will be leaving Edinburgh at your scheduled departure time, so don’t expect a clear run today.
Essential Requirements (the scenario won’t work without these):
The East Coast Mainline Merge (ATS)
Just Trains Voyager Advanced
Armstrong Powerhouse Class 220/221/222 Sound Pack (optional)
Leander Voyager Advanced updated consists (ATS)

DTG Intercity Class 91 (Steam)
Armstrong Powerhouse Class 91 Enhancement Pack
IC225 LNER/VTEC V1.6.1 Pack (ATS)

Armstrong Powerhouse Class 158 Cummins Enhancement Pack + branding patch
Major Wales Plawwie

Reccomended Requirements (the scenario will work however you will miss ai):
European Loco and Assets Pack (Steam)
Armstrong Powerhouse Class 43 MTU Enhancement Pack + branding patch
Clowes/BH Reskins IC125 VTEC/LNER Pack (ATS)
Major Wales Class 43 revamp pack + MJW Scotrail Inter7city HST
James Ivell MK3 Sliding door pack (ATS)

Midland Mainline- London St Pancras to Bedford (Steam)

Armstrong Powerhouse Class 156 Enhancement Pack + branding patch
Chris Horfield’s Northern Destinations

EWS Class 66 V2.0 + Freightliner Class 66 V2.0
Armstrong Powerhouse Class 66 Enhancement Pack + branding patch
James Ivell Class 66 LED Headlights

Armstrong Powerhouse JPA wagon pack + branding patch

Thomson West Coast Mainline Trent Valley (Steam)
West Coast Mainline Trent Valley Megafret AP Sound Patch (ATS)

Just Trains Class 153 Advanced
Major Wales Class 153 Revamp Pack
Major Wales Class 155 Arriva Northern

Armstrong Powerhouse Class 142 DMU Pack + branding patch
Major Wales Class 142 Ex Northern Rail

Totalize Media Class 380
Ash992478 Class 380 Abellio Scotrail (Vulcan Productions)

Fuller Simulations Class 185 DMU Pack (latest version) + its requirements.

DTG Class 180 DMU addon (Steam)

Optional Requirements (Static ai in sidings, depots, etc)
Thomson Class 170 DMU Pack/Edinburgh- Glasgow (Steam)
Armstrong Powerhouse Class 168/170/171 Enhancement Pack + branding patch
Major Wales Class 170 Arriva Northern
Vulcan Productions Class 170 Abellio Scotrail pack

DTG ECMLS South
Simvue Class 801 LNER
Armstrong Powerhouse Class 321 Enhancement Pack + branding patch

DTG Class 67 EWS Loco Add-on (Steam)

South Wales Coastal Unbranded (Steam)

Armstrong Powerhouse HIA Wagon Pack + branding patch

Armstrong Powerhouse HHA Wagon Pack + branding patch

Armstrong Powerhouse JNA Wagon Pack + branding patch

EWS and Freightliner Class 08 Addon (Steam)
Jamesclass37 Class 08 RSS reskin (ATS)

Armstrong Powerhouse Wagon Flat Sound Pack

Armstrong Powerhouse Sky and Weather Enhancement Pack
Armstrong Powerhouse Track Enhancement Pack
Installation instructions:
Extract the folder to a temporary location, e.g. desktop.
Copy the ‘Content’ folder and paste it into your Railworks directory, usually Steam, Steamapps, Common, Railworks

That should be all. If I have missed anything, please let me know in the comment section under where this scenario was downloaded.