After playing a long game as survivalist using single handguns only, i ended up bugging my inventory. What happiens now and this is not all the time but frequent enough to be annoying is when i say buy a mp7 it will give me a random gun like the sg500 or something. Even more annoying is when i am late game and i buy say an RPG and it will give me a ar15 but still charge me the price of the rpg. Thinking this has to do with how the inventory selection works. As i has a m9, 1911, revolver, deagle, 500 magnum, medic handgun. I think this overloaded it lol