Removing of white weapon trails from weapons

[MadRacooN]

Hey guys, I'm really new in the modding.

Currently I want to make a couple of mods for myself:
one of them is making of blood permanent on the ground etc, what I found that these files are responsible for this:
da3/vfx/vfx_impacts/decals/blood/emitters/emt_decal_default_blooddrips....
But not sure, what's responsible for the meshes timeout.

Second one: I want to remove these awful white trails from weapons when you're swinging:
da3/animation/vfx/weapontrails. 
I would also like to know, how I can make them removed at all, or maybe transparent(invisible), or at least visible 50% 

Thanks