I went back to Grand Theft Auto 4 for a Call of Duty zombie mod mash up

New York state of (losing my) mind.
GameSpot

Call of Duty: WWII - Nazi Zombies Reveal Trailer

Call of Duty: WWII Nazi Zombies rises on November 3. In Call of Duty: WWII, players will battle across Europe through strategic locations in history’s most monumental war.
Pocket Tactics

Blood Reaver is doing what COD Zombies hasn't done in 16 years, and bringing it to the Nintendo Switch 2 is "absolutely something" the devs are considering

If you're yearning for some classic Call of Duty Zombies antics, then Blood Reaver is the WaW and Black Ops-inspired shooter ...