In "Call Of Duty: World At War", the first appearance of the "PPSH-41" in "Zombies" was in the map "Der Riese".

The statement is false because the first appearance of the PPSH-41 in Zombies mode was actually in the map "Nacht der Untoten," not "Der Riese." "Nacht der Untoten" was the original and introductory Zombies map in Call of Duty: World at War, where players could first find the beloved PPSH-41 submachine gun. "Der Riese" was released as part of the game's DLC and introduced new features and weapons, but the PPSH-41 was already available prior to that map.