Fallout: London "Train Crash Crash" Fixes!!

fallout_london_train_crash_fixes.txt

Fallout: London "Train Crash Crash" Fix

This is what worked for us. It may or may not work for you.

We installed Fallout 4 GOTY edition from GOG as a fresh install.

Install Fallout: London using the installer on GOG Galaxy (Windows) or Heroic Launcher (Linux).
Linux Heroic Launcher guide: https://github.com/Heroic-Games-Launcher/HeroicGamesLauncher/wiki/Fallout:-London-guide

*** We are not using a mod manager such as MO2 or Vortex. ***

It has been confirmed by several users that these instructions will also work for a Steam install - simply substitute
your Steam install folder for any references to GOG in these notes.

Please ensure that you have run the downgrader from https://fallout4london.com/release/ (if using Steam), turned off automatic 
updates and cloud saves, and that if you have a pre-existing save directory in C:\Users\YOURNAME\Documents\My Games\Fallout4\ that
it has either been deleted or renamed to avoid conflict.

  Install xSE PluginPreloader F4 to 
  
  Windows:
    C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY
    
  Linux GOG Heroic Launcher:
    ~/Games/Heroic/Fallout 4 GOTY
    
  Download: https://www.nexusmods.com/fallout4/mods/33946
  
  ------------------------------------------------------------------------------
  Install Buffout 4 to
  
  Windows:
    C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY\Data\F4SE\plugins
  
  Linux GOG Heroic Launcher:
    ~/Games/Heroic/Fallout 4 GOTY/Data/F4SE/plugins
  
  Download: https://www.nexusmods.com/fallout4/mods/47359
    
------------------------------------------------------------------------------
Install High FPS Physics Fix to
  
  Windows:
    C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY\Data\F4SE\plugins
  
  Linux GOG Heroic Launcher:
    ~/Games/Heroic/Fallout 4 GOTY/Data/F4SE/plugins
    
  Download:
  Ensure that you install version 0.8.6 for versions of Fallout 4 that don't include the next-gen update.
  https://www.nexusmods.com/fallout4/mods/44798
  
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Edit 

  Windows:
    C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY\Data\F4SE\plugins\BakaScrapHeap.toml
  
  Linux GOG Heroic Launcher:
    ~/Games/Heroic/Fallout 4 GOTY/Data/F4SE/plugins/BakaScrapHeap.toml
   
  Change: ScrapHeapMult = 2 to ScrapHeapMult = 4
  
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Set graphics options in Fallout 4 Launcher

  In "Fallout 4 Options" window;
    Resolutions > 1920x1080
    Antialiasing > TAA (Best quality)
    Anisotropic Filtering > 16 Samples
    Windowed Mode > Off

  In "Advanced"
    Texture Quality > High
    Shadow Quality > High
    Shadow Distance > High
    Decal Quality > High
    Lighting Quality > High
    Godrays Quality > Medium
    Depth of Field > Standard (Low)
    Ambient Occlusion > SSAO (High)
    Weapon Debris > Off (best performance) <--- [This is the setting that differs from original config]
    Screen Space Reflections > ON
    Wetness > ON
    Rain Occlusion > ON
    Motion Blur > OFF
    Lens Flare > ON
    (Weapon Debris is a frequent cause of crashes on modern NVIDIA GPUs)


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Edit
    Windows:
      C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY\Data\F4SE\plugins\Buffout4\config.toml
    Linux:
      ~/Games/Heroic/Fallout 4 GOTY/Data/F4SE/plugins/Buffout4/config.toml

      Change: MemoryManager = true to MemoryManager = false
      (This is to prevent Buffout 4's memory manager conflicting with BakaScrapHeap)

------------------------------------------------------------------------------
If any further crashes:

Edit C:\Users\YOURNAME\Documents\My Games\Fallout4\Fallout4Prefs.ini
Find the [NVFlex] block and change the values to 0 for the following lines;
  bNVFlexEnable=0
  iQuality=0
  bNVFlexInstanceDebris=0
  bNVFlexDrawDebris=0

In the [Display] block, ensure that iPresentInterval is set to 1 to enable VSync.
(FPS>60 causes the Fallout 4 physics engine to behave in unexpected ways unless a High FPS Physics mod is installed.)

If your system is running high FPS (>60FPS) it is advisable to install High FPS Physics Fix to
C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY\Data\plugins
https://www.nexusmods.com/fallout4/mods/44798
Ensure that you install version 0.8.6 for versions of Fallout 4 that don't include the next-gen update.

These fixes are not my own work. Credit goes to (in no particular order);
@SunnyDelight @Thanem @FTC @Indiana_Minotaur @AtomBonnieBaby @BSkotnes
Prepared by @Dalarielus

Heroic Launcher (Alternative GOG/Epic/Amazon Games Launcher)
https://heroicgameslauncher.com/

Gaming On Linux
https://www.gamingonlinux.com