Players seek codes to unlock Liberty Falls vault in Call of Duty Black Ops 6 Zombies

To open the Liberty Falls vault in Call of Duty: Black Ops 6 Zombies, players must find three codes hidden on yellow Post-it notes across the map. Each note contains two digits, forming a six-digit combination that changes each match. The codes are located in three specific areas: Savings and Loans bank, Olly's Comics store, and Fuller's Lane bowling alley. Players should collect Loot Keys from elite enemies to unlock safety deposit boxes inside the vault. After gathering all codes, return to the Savings and Loans vault to input them. A 40-second timer will start, allowing players to use Loot Keys for rewards, including Wonder Weapons and Essence.