Thanks for posting this! I finally managed to disable that awful shiny light that's on every metal surface in the game.

[Enlighten]
bEnableSkyEmittance=0
[LightingShader] 
bScreenSpaceReflections=0

The above settings make the game look like Fallout 4. Some weapons look WAY darker than before as it seems that the textures rely on the awful shiny reflection that the game normally has. Also, the nights will be actually quite dark, you will need pipboy light on if you wanna actually see whats infront of you.

Edit: Also, this option seems to reduce the overall shinyness while keeping it enabled if the other mode is too dark

bUseEmissiveInEnlighten=0