Downturn

Downturn is a map with a single, very-popular defensive position and numerous hiding spots. Because the vast majority of humans go to the defensive position, and it is very difficult to survive outside of it once spoted by zombies, the security of the defensive spot will often make or break the game for humans. If it is overrun, few if any humans will survive. But if humans successfully defend it until the end of the round - and they often do - then many humans can survive.