Treyarch's signature Nazi zombie co-op may have been secretly stuffed into Call of Duty: Black Ops.
Both list "Nazi zombie coverage" as one of the product's features.
Neither Activision or Bradygames were available for comment, but we'll let you know when they are.
This isn't the first we've heard of Nazi zombies' inclusion in Black Ops: in August, retailer listings for the Hardened Edition of the game boasted about including "four Zombie Map Packs made famous from COD: World at War".
Nazi zombie mode is based around a team of human players fending off wave after wave of undead fascists - each swarm more powerful than the last. It debuted in Treyarch's last Call of Duty game, World at War.
Call of Duty: Black Ops will be released on 9th November.