The Warden is perhaps the hardest boss fight in Black Ops 7 Zombies as part of the Rex Infernus finale, which is why you might need a little help beating him. This guide will share the best loadout for the Warden boss, along with tips on how to beat him in all four of his phases. The Warden is no joke, so you're going to need your best loadout and to know exactly how he works, as completing this with a team, let alone as a solo player, is one of the hardest challenges in BO7 Zombies.