Good Morning Driver you find yourself at Birmingham New Street on this Cross Country service down to Plymouth due to Engineering works between Standish and Westerleigh Junction you are being Diverted via Gloucester and Newport (South Wales) to get back on track you are required to reverse at Bristol Parkway and Newport 

Player Train Requirements
MTU HST
HST (MTU) Pack

Route Requirement
XC Route
XCRoute Birmingham to Bristol – Alan Thomson Simulation

AI Requirements

166
Train Simulator: European Loco & Asset Pack on Steam (steampowered.com)
Wessex Mainline for Turbo Update plus Reskins
Just Trains – Wessex Main Line: Southampton – Salisbury Extension
Portsmouth Direct Line WAT to PMH
Train Simulator: Portsmouth Direct Line: London Waterloo – Portsmouth Route Add-On on Steam (steampowered.com)
Class 350 EP
Class 350 Enhancement Pack (armstrongpowerhouse.com)
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)
Class 170
Train Simulator: BR Class 170 ‘Turbostar’ DMU Add-On on Steam (steampowered.com)
Class 170 Enhancement Pack
Class 168/170/171 Enhancement Pack (armstrongpowerhouse.com)
Voyager Advanced 2019
Just Trains – Voyager Advanced 2019
Semaphore simulations
Meridian/Voyager Advanced 2019 Overhaul – Other – Semaphore Simulations
Class 175
Train Simulator: South Wales Coastal: Bristol – Swansea Route Add-on on Steam (steampowered.com)
Class 175 EP
Class 175 Enhancement Pack 2.0 (armstrongpowerhouse.com)
Revamp Pack
Class 175 (major.wales)
Class 153
Just Trains – Class 153 DMU Advanced
Revamp Pack
Class 153/155 (major.wales)
TFW Reskin
Transport for Wales (major.wales)
Class 66
Train Simulator: Freightliner Class 66 v2.0 Loco Add-On on Steam (steampowered.com)
Train Simulator: EWS Class 66 v2.0 Loco Add-On on Steam (steampowered.com)
Enhancement pack
Class 66 Enhancement Pack (armstrongpowerhouse.com)
Class 800EP
Class 800-803 Enhancement Pack (armstrongpowerhouse.com)
ECML London to Peterborough
Save 50% on Train Simulator: East Coast Main Line London-Peterborough Route Add-On on Steam (steampowered.com)
JT Chiltern Mainline (AI Static Only)
Just Trains – Chiltern Main Line: London-Birmingham
WCML South
Save 50% on Train Simulator: WCML South: London Euston – Birmingham Route Add-On on Steam (steampowered.com)
170/168 Air Dam Pack
DMU Downloads – VULCAN PRODUCTIONS
323 WMR Pack
Electric Downloads – VULCAN PRODUCTIONS
390 Revamp
Major Wales Design – Class 390
Sound Pack for 390
Class 390 Sound Pack (armstrongpowerhouse.com)
BAA/BZA Wagon Pack
BAA/BZA Wagon Pack (armstrongpowerhouse.com)

V1.1 Update
MPV
GOLD STAR TRAINS® Multi-Purpose Vehicle (MPV) Pack – Alan Thomson Simulation
RHTT Wagons
Just Trains – Class 20 Advanced Collection
HHA Wagons
HHA Wagon Pack

Optional
Avanti West Coast Texture Upgrade for 390
nothing changes Scenario wise if you don’t have this.
DTG/MJW AWC Class 390 Livery Update – Alan Thomson Simulation