Swapping guns is faster than reloading. If you find extra weapons during a defense, use them to maintain fire without waiting for reload animations.

To survive on higher difficulties like Advanced or Expert, teamwork is non-negotiable.

Teams perform best when moving quickly and staying close together. The person on point should regularly check the rear, while those in the back clear paths for the leader.

When a horde is triggered, find a corner or a wall to put your back against. This limits the angle from which zombies can attack.

The original survivors, playable in "The Sacrifice" and "The Passing".