JimboUK

I would add New Vegas Anti Crash to that list, you may well have problems without it. Personally I would play the game as close to vanilla as you can get the first time around, experience the game how it was meant to be experienced before making changes.

You might have more luck getting an answer here https://forums.nexusmods.com/forum/4306-vortex-support/

According to this it doesn't work with the gamepass version https://github.com/xNVSE/NVSE

Do you have this installed? https://www.nexusmods.com/newvegas/mods/68714?tab=files You need it with that many plugins.

https://www.nexusmods.com/newvegas/mods/62552 This is the patch you want, just drop it into your game folder and double click the FNVpatch.exe

Open the console, click on the NPC and enter GBO, that will return their base ID, then use the command setessential baseID 1 The GBO command requires NVSE.

You'd have more luck posting this here https://forums.nexusmods.com/forum/8882-discussion/

As far as I know occlusion planes only affect rendering, it wouldn't take long to do and it's worth trying. Something else you might want to check are light sources, they're more resource intensive than people think and are made even worse by the presence of NPC's.

Make your own custom one, you'll get what you want and lighting mods that change the imagespaces won't change it.

I've used the Underworld template and it came out pretty dark, you can always tweak it if it's not quite right.

Make sure that the references you're sending those NPCs to are marked as persistent.

Make sure that whatever marker or reference you're sending them to is a persistent reference.

Custom navmeshes tend to be buggy in plugins without that flag set.

Have you got the latest NVSE installed and is it in the right place? https://www.nexusmods.com/newvegas/mods/67883

Something like C:\Steam would be fine.

Your game shouldn't be installed in the program files, Windows protects that folder and it can cause problems with mods. This is how to move it https://help.steampowered.com/en/faqs/view/4BD4-4528-6B2E-8327

Drop one on the floor, open the console and click on the item, an ID will appear at the top of the screen, the first two characters of that ID will be the load order number of the mod it came from.

Install this, it says New Vegas but it works for FO3 https://www.nexusmods.com/newvegas/mods/53635

Any disabled object called on by an AI package or any other script will be re-enabled by the game, it's what makes disable preferable to delete, if a script calls on something that's been deleted the game will crash.

To select an object use the Prid command Prid WhatevertheIDis The object ID should now be displayed at the top of the screen to show it's selected, now enter enable into the console and it should appear. The ID you want is the reference ID, the one that appears at the top of the screen when you click on something with the console open, you don't want the baseID unless you're planning to spawn in a new one.

I've never heard of it, maybe it's from a mod?

No, it's the one you visit at the end of Veronica's quest.

An SSD makes a hell of a difference, not so much with initial load times but stutter is cut dramatically.

I wouldn't even know where to start with this, but if you have Fallout 3 take a look at the Presidential Metro Train in the Broken Steel DLC, they made a train out of a hat.

You could try making a backup of shaderpackage002.spd in case this doesn't work, then copying shaderpackage013.spd to another place, renaming it to shaderpackage002.spd and putting it back overwriting the original shaderpackage002.spd. Also, if you have more than one GPU, maybe an onboard one and separate dedicated one make sure that the game is trying to use the correct one.