During a Zombie Invasion Event, Zombie Nests will begin spawning on the world map.
To begin the event for your Alliance, your Alliance leader or R4 will need to go to the nest and hit 'Start'.
Waves of Zombies will begin attacking the Bases of every unshielded member of your Alliance. Each wave will increase in level and difficulty. Prepare your defenses and try to survive as many rounds as you can for amazing rewards. Every 5 rounds you will encounter an Elite Zombie Troop that drops a Zombie Crate when defeated:
Remember, your Alliance can only participate in the event once per event duration. If you're an R4 or R5 member and you're unable to start the Zombie Invasion, another member of your Alliance Leadership may have already triggered it.
Please check each individual event description for rules, points, and rewards!