No main quest
Nacht der Untoten has no main quest and no song Easter egg in World at War. Undone, the song behind three explosive barrels, was only added in Black Ops. What the first map hides is small, and it started a tradition.
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The secrets of Nacht der Untoten in World at War: no main quest, the radio of the Help room and its songs, the chalk writing on the walls, the unfinished Help door, the destructible trucks and the small details of the first Zombies map.
Nacht der Untoten has no main quest and no song Easter egg in World at War. Undone, the song behind three explosive barrels, was only added in Black Ops. What the first map hides is small, and it started a tradition.
In the Help room, to the right of the Mystery Box, stands a radio. Knifed or shot, it plays a piece of music. In World at War, the songs include the Black Cats soundtrack, the Red Army theme, the Königgrätzer Marsch and the song “WTF”. The Black Ops version plays other music, mostly from Dead Ops Arcade.

“You must ascend from darkness” is chalked on a wall. The words were also a step of Viktor Reznov’s escape from Vorkuta, and later the second step of the Origins main quest.

“Salvation lies above” is chalked on a wall, pointing to the upper floor.

The chalk on the door spells “HELP”, but its P is unfinished, so it reads “HELL”.
Doors closed, only the writing of the starting room is in sight. The radio, the Help door seen from inside and the writing of the Help room are all behind the 1000-point door.