"Zombicide is a cooperative game where players face hordes of Zombies controlled by the game itself. Each player controls one to six Survivors of a Zombie Infection. The goal is simply to complete the Mission objectives and live to see another day.
The good news: Zombies are slow, stupid, and predictable.
The bad news: There are a lot of Zombies!" - Rue Morgue Rules & Missions, Page 5