After the onset of the zombie apocalypse, people had to go underground, building concrete catacombs in The Bloody Stand. But in some places, zombies still manage to penetrate even into the dungeon, and it became necessary to build defensive barricades to delay the onslaught of zombies and prevent them from moving deeper. Near each barricade, someone should be on duty in case the undead appear, and in The Bloody Stand you will fight off waves of attacks. The task is not to let a single zombie pass the barricade.
