Title says it all. None of the Unique weapons from fallout 3 listed on the TTW WMX thread cant be modded at all (besides the ones changed by EVE) and I've also discovered that gun from new Vegas also can not be modded. I hope this problem hasn't extended to the uniques from NV too.
LO: https://pastebin.com/SLceb18S
Just a few days I tried TTW WMX to test a mesh problem reported with the Lincoln Rifle.
I could install all the mods on it without any problem. 
Did you try the Lincoln's Rifle and do the mods work on that? If they don't then I have the feeling some mod is overriding TTW WMX. A new merge patch should be able to fix it (if that is the problem).
Sorry I can't help more.
No problem man, I'll have to test Lincoln's rifle for my self. I also already have a merged patch
New development however, I've just found both the Ratslayer and a hunting revolver on my NV. Now both of the dropped models are showing as having scopes on them when i know for a fact that WMX is meant to remove them and make them moddable instead. As with all unique weapons for me since Using WMX the ratslayer is unmoddable and now so is the hunting revolver. When equipped the textures are broken on both weapons and the scope is removed from the model but you can still zoom in as if the scope was still there. Just when i thought I fixed all my mod problems a new one Arises
EDIT: after going back to my DC character I tried out Lincoln's repeater and it can be modififed just fine, and now so can a few other unique's that I couldn't before like the backwater rifle, terrible shotgun and Blackhawk. But now some NV weapons like the LMG, riot shotgun and brush gun have their WMX mods missing.
Its as if the problem has completely switched sides. Oh and the Xuanlong now has a missing mesh. Its as if the completley switched sides since I start my NV character. DC weapons can now be modded fine but NV ones now cant. What a fine mess I've gotten myself into eh?
You don't have correct patches and you did not make a proper feature patch. See my video on doing things. WMX, EVE, Impact, WRP and GRA Integration all interfere with each other.
What patches am I missing? I reinstalled WMX with the proper TTW instructions earlier today (becuase I'm and idiot and overlooked them when i first modded with TTW) hoping it would fix my non-moddable uniques problem but unfortunately the problem seems to have just switched to NV uniques (I think).
deleted impact since it just seems to be causing problems so far and I practically never look at bullet casings or holes. EVE enhancements will do by themselves. Contemplating removing GRA integration too but its just such a convenient mod 
EDIT: Scratch that, just found this little gem which I'm hoping would work http://www.nexusmods.com/newvegas/mods/62050/?tab=1&navtag=http%3A%2F%2Fwww.nexusmods.com%2Fnewvegas%2Fajax%2Fmoddescription%2F%3Fid%3D62050%26preview%3D&pUp=1
I've just watched your video on feature patches, good guide btw, but is their a limit to how many plugins you can merge into a single feature patch?
There is no limit to how many you can integrate as long as the correct overrides are chosen.
After simply deleting WRP it seems to have fixed most of my problems, Sadly but what can you do? Any other full weapon retextures out there?
Fixed! after reinstalling everything in a specific order Most of my problems are now gone. Almost all weapons are now moddable and mods that appear to have been previously missing are now appearing in my game. Only exceptions so far being the EVE version of vengeance, the Zhu-rong and the burnmaster.
Hunting rifle and FN FAL Scopes are still broken but I'm fairly sure that's an unrelated issue as thats always been the case for me.
