After I got all of the new DLC loaded and showing up in game I got the new weapons from the Gunrunner dlc and some are invisible, also when equipping the new mods for these new weapons (the ones you can see that is) all that displays is a giant ! (exclamation point) and when you look at some in the vendor inventory you get a notice that the item is not in the database. Attaching them has not been a problem. Bethesda gonna fix this anytime soon, the mods appear to be awesome. I play on PC version.