Around the path leading to the farm there is a large corn field. In the middle of the corn field players can find the original zombie map Nacht der Untoten. Denizens will not spawn in or around the building. However, the player can only go into the starting room, because the help room door is blocked by rocks, and the stairs to the upstairs have collapsed. The wall weapons are gone. To get into the building there is an opening next to the location where the Kar98k used to be.
If the player gets a sniper rifle and stands in front of the fence, they can see the barn before the Earth's destruction in the scope's reflection.
The Mystery Box can be activated if someone crouch jumps right beneath it, while standing on top of the left railing next to the pillar. The same can also be done for acquiring the player's box weapons. This is useful if one didn't want to open the door, as the door doesn't have to be open in order to do this.