Jonathan Ferguson, a weapons expert and Keeper of Firearms & Artillery at the Royal Armouries, breaks down more of the weaponry of XDefiant, including the KRISS Vector, a cursed Mosin Nagant, and the RPK-74. Jonathan Ferguson, a weapons expert and Keeper of Firearms & Artillery at the Royal Armouries, breaks down more of the weaponry of XDefiant, including the KRISS Vector, a cursed Mosin Nagant, and the RPK-74.