In "Call Of Duty: Zombies", which map's opening cutscene shows "Richtofen" killing another version of himself?

The answer is The Giant because in the opening cutscene of this map, Richtofen is shown killing another version of himself from a parallel universe. This act is a significant event in the Call of Duty Zombies storyline, as it marks the beginning of Richtofen's quest to secure the Kronorium, a book that holds knowledge of different realities and their connections. By eliminating his doppelganger, Richtofen demonstrates his ruthless determination to manipulate the multiverse in his favor, setting the stage for the intricate narrative that unfolds throughout the game.