To unlock the Vaznev-9k in Warzone, you have to achieve stage 15 with the Kastov-74u. Before you can do this, you’ll also need to unlock and degree up several weapons. abide by these actions to unlock the Vaznev-9k in Warzone: Other fantastic SMGs in Warzone include the WSP Swarm, that has taken about the near-assortment meta given that MW3’