In "Call of Duty: Zombies", what group does Doctor Maxis work for?

In Call of Duty Zombies, Doctor Maxis works for Group 935. This secretive organization is a fictional group that plays a major role in the zombies storyline. Group 935 is a scientific research organization led by Doctor Ludvig Maxis, created with the aim of advancing technology and pushing the boundaries of scientific study during World War II. Doctor Maxis is initially portrayed as a loyal and committed member of this group, but as the storyline unfolds, his motivations and allegiances become more complex, adding depth to his character and the overall narrative arc.