The Tunnel

The Tunnel is the fifth location and, as of the 5.0 update, the newest location in the game. As its name suggests, it is a long train tunnel that goes through a mountain range that is impassable by other means. The tunnel leads to a multi-level underground shelter inside the mountains.

The tunnel is blocked halfway by a wall of rubble. The train cannot pass through to the other side until the player finds a way to clear the blockage. What makes the challenge more difficult is the fact the shelter is a confusing labyrinth of dark corridors and hordes of zombies. A flashlight is absolutely necessary to find one's way around the location, in addition to having adequate weapons, armor, and supplies.

The AKM assault rifle is found in this location.