To unlock the Vaznev-9k in Warzone, you must attain stage 15 Using the Kastov-74u. Before you can try this, you’ll also must unlock and stage up a number of weapons. Follow these actions to unlock the Vaznev-9k in Warzone: Other wonderful SMGs in Warzone involve the WSP Swarm, that has taken around the close-selection meta since MW3’s integr