in this video I’m completing the hardest achievement in Black Ops 6 Zombies dark Ops Mastery which is to complete 15 dark Ops challenges these are 19 top secret and super difficult challenges in Zombies this video is going to show exactly how I did the 15 hardest so that you can unlock them too there’s a lot to do so let’s get started one of the first dark Ops that I unlocked was another round which was to reach round 100 in Black Ops 6 zombies now to a lot of players this is actually one of the