Have you edited the .bgsm file for the frame? You can use the material editor, http://www.nexusmods.com/fallout4/mods/3635/? and find templates under Materials/Templates. Open one up and look under the material tab. ( I use it as a guide rather than just doing material swaps. ) If you're taking a painted metal surface (vanilla) and trying to achieve a chrome look you're going to have a hard time unless you edit the materials spec values etc. For example the spec multiplier for the frame is 1.00000 and the spec multiplier for the chrome template is listed at 0.33000 The only thing I hit a wall on was spec color. I tried to achieve a look similar to your top left image, which would involve changing the spec color in the material editor to a pink hue, but if I change the color nothing happens in game. In Skyrim I would just change spec color in nifskope, I tried that as well here and no go. So I can achieve a chrome look but not a tinted chrome, or tinted metal for that matter. On top of that I don't believe the PA frame has material files for the individual parts of it, so altering spec values in the material file would blanket alter the whole frame. The workaround being careful editing of spec and gloss values in the _s. TLDR, To achieve that pink chrome-ish look in the top left image you would need a dark diffuse, spec and gloss edited accordingly, then material values in the bgsm file for the frame edited to match values displayed in the MetalTemplate_Chrome.bgsm. I just cant get the spec color to change.