The Hotel

The Survivors start on top of a hotel converted into a evacuation center, recently swarmed by the infected. The Survivors witness the helicopters moving to a different location, and decide to follow them through the city. This chapter contains a Crescendo Event in which the Survivors must pry open a set of stuck elevator doors, making a loud screeching noise that summons the horde.

Trivia

 * This hotel is featured in the Zombie Survival Guide trailer, when the Survivors are seeking to get to the evacuation center.

Reference
Scene at 1:21