in this scenario you will take a Class 158 on a short afternoon run to Westbury from Yeovil Junction calling at all stations en route

Player train Requirements
Class 159
Train Simulator: Network SouthEast Class 159 DMU Add-On on Steam (steampowered.com)
Class 158 Cummins Enhancement Pack
Class 158/159 (Cummins) Enhancement Pack (armstrongpowerhouse.com)

Route Requirement
Paddington to Paignton V3 via Newbury and Yeovil
https://alanthomsonsim.com/downloads/paddington-to-paignton-version-3-update/

Ai Requirements
Semaphore Sim SWR Reskin Pack
SWR 159 Reskin Pack – Reskin Packs – Semaphore Simulations
ECML London to Peterborough for 801
Train Simulator: East Coast Main Line London-Peterborough Route Add-On on Steam (steampowered.com)
AP Class 800 EP
Class 800-803 Enhancement Pack (armstrongpowerhouse.com)
Class 800 Improvement Pack
https://www.trainsimcommunity.com/mods/c1-train-sim-classic/c13-patches/i6372-class-80x-extra-equipment-visual-patch
European Loco and Asset Pack
https://store.steampowered.com/app/208300/Train_Simulator_European_Loco__Asset_Pack/
Networker Turbo
https://alanthomsonsim.com/product/alan-thomson-simulation-class-165-class-166/
Just Trains Auto ballasters
justtrains.net/product/jja-autoballaster-pluspak
HQA autoballaster Reskin
https://www.dpsimulation.org.uk/rf72wagons.html
AP JNA
JNA-C Wagon Pack (armstrongpowerhouse.com)
Class 66
Train Simulator: EWS Class 66 v2.0 Loco Add-On on Steam (steampowered.com)
Enhancement pack
Class 66 Enhancement Pack (armstrongpowerhouse.com)
Medway Valley Line for Wagons only
https://store.steampowered.com/app/677960/Train_Simulator_Chatham_Main__Medway_Valley_Lines_Route_AddOn/

Optional
Plawwie Patch for Class 158
https://www.major.wales/patches