Catalonia

Catalonia is a map set in a deep valley containing a few buildings, a cemetery, and a dock. Players spawn on the dock and often take refuge in the cemetery, the roof of one of the buildings, treetops or edges of the mountains accessed by parkour. These places are not incredibly defendable, but with nowhere to hide and little potential for outrunning zombies, humans have little choice.

The main advantage of the cemetery is that it's the farthest point from spawn, making it hypothetically last on the list of undead targets. However, it's easy for zombies to enter, and neither bows nor grenades are very effective at stopping them. The best option for humans is swords; As long as the living have numerical superiority, they can hold out. But once the cemetery is overrun, it is very difficult to escape alive.

It is possible to climb atop the roof of one of the buildings by completing a simple, but moderately-challenging parkour onto an adjacent tree. Humans can bombard this brief parkour with arrows and grenades, and if too many zombies climb up, it's easy to escape- although life expectancy is very low in the exposed areas of Catalonia.