The Brenner's been one of my favorite weapons. Unfortunately, the PD2 version for a long time (among other weapons) has had such a shitty texture that you were better off using LemonCat HD Black gun textures instead, until now.
Using a mixture of Aday's HQ texture restoration and Gambyt's Subtle Weapon Improvements along with my own edits/fixes, I've been able to significantly improve the quality and reduce eye strain/artifacting to barely visible amounts or just left on parts of the weapon that you can't see in first person.
