ZeMark123

Need help/advice on how to install weapon mods. I know to put the files in the Pak Folder, and so far I've put 3 gun mods in. one shows up as a replacement, but the other two are no where to be found. and a wild fourth one always made the game CTD. And it only seems to give me issues with the weapon mods and nothing else. I was thinking its a compatibility issue between updates and the mods but I figure I turn to the forums for more info