The Zone is home to hidden treasures that are hidden deep within certain locations in Stalker 2: Heart of Chornobyl. Players can only find these hidden away items if they take the time to explore every inch of a location and find hidden sections. One of these hidden areas can be found in the Cement Factory region while completing the Uninvited Guests side mission. The vaults are located in the underground facility where players search for Mytryk's gun.