Make sure you're starting the game from the correct executable.
FALLOUT NEW VEGAS WEAPON MODS NOT WORKING INSTALL
Unlimited Companions, has every script in NV in it, completely breaks the game even without TTW.While the Nexus Mod Manager makes things pretty simple to install mods, the notoriously unreliable game means there's a variety of reasons your mods may not be loading.Gun Runners' Arsenal integration mods other than jsawyerbatty.Project Weaponry, multiple incomplatible meshes, all iron sights broken with TTW.Leave conversation, This mod force closes dialogues which breaks scripts and dialogue choices can become locked out, breaks the game.F***able Companions TTW, Uses Add Topic which will break any other mod with added Greetings.The Storyteller, dirty edits and incompatible conflicts.Enhanced NPC Awareness, causes random NPCs and companions after firing to become hostile to the player.Continue After Games Ending/ Continue After Ending, Use FPGE (Functional Post Game Ending), by kazopert instead.Alt Start Mods, they will break the game.Pipboy Readius, causes CTDs in tranquility lane and initial train trip.A Familiar Friend, use the arm mounted version.There is a scripted version that works and can be used instead. Impact, weapon edits are incompatible, it can be patched.There are also problems with texture sets, sound fixes and other issues. Weapon Mod Expansion, all meshes are incompatible with TTW's fixed animations.Weapon Mods Expanded, all meshes are incompatible with TTW's fixed animations.
FALLOUT NEW VEGAS WEAPON MODS NOT WORKING PATCH
Anything that alters the game's timescale.Most major overhauls to NV, like DUST and AWN, will completely break the game due to leveled list changes and/or deleted forms.Classic Fallout Weapons FO3, & Classic Fallout Weapons - New Vegas, completely incompatible, breaks leveled lists in both games, broken meshes.Incompatible with the mesh and animation fixes in TTW, irons sights, reloads for Fallout 3 weapons and other things will not work correctly. Animation Replacers like Weapon Animation Replacer WAR, Hitman's 1st Person Weapon Animation Overhaul, Asurah Reanimation Pack, completely incompatible at this time, we expect Asurah's to get a patch in the future.More Perks, redundant Fallout 3 perks and generally incompatible and buggy.Weapons of the New Millenia, patch in progress, iron sights are off due to animation fixes and leveled lists need rebuilt.New Vegas Uncut - Freeside Open, and any other mod that makes changes to the Freeside worldspace will require a patch.Fallout Who Vegas - Complete, breaks dialogue and more.FCO Fallout Character Overhaul, all versions are known to conflict and break TTW, do not install.Killable Children, or any similar mods Incompatible.Clear Cache Hotkey, it will break your game.Zan Autopurge Crash Protector, it will break your game.Purge Cell Buffers, it will break your game.HeroInZero's Weapon Fixes, script and fix conflicts (not necessary).Unofficial Patch Plus, script and fix conflicts (not necessary).
After War Nevada, completely incompatible.FOOK New Vegas, completely incompatible.DUST Survival simulator, completely incompatible.XFO, This mod is ancient and not even compatible with the current version of Vanilla New Vegas.MMUE Mission Mojave Ultimate Edition, Deletes records TTW needs and reuses Fallout 3 records.NVEC New Vegas Enhanced Content, uses many unused records in FNV for it's own stuff, we use the same records because they're FO3 records.Project Nevada, Anything but the core module is incompatible with 3.2+, that means Equipment, Rebalance and Cyberware are not compatible, Rebalance and Cyberware can be patched but Rebalance needs AI changing removed, Equipment can not be patched and is largely redundant with Fallout 3.