On Twitter, Treyarch likewise states Black Ops Cold War Zombies will have “complimentary post launch material.”
Cross-Play and Cross-Gen: Just like Multiplayer, squads in Zombies can be formed across platforms and generations, marking the very first time in franchise history this co-op mode is available through cross-play.
S, Xbox One, and PC to all play together.
Battle Pass Progression and Loadouts: Players will now advance through the Battle Pass with time played in Zombies, comparable to Multiplayer and Call of Duty: Warzone ™. Requiem staff member can likewise start the match with their Gunsmith-crafted weapon of option via loadout support.
In addition, Black Ops Cold War Zombies also includes assistance for the Battle Pass system. Zombies playtime will add to the overall Battle Pass development.