To unlock the secret dynamic room in the campaign, you must input a specific color-based sequence. The exact is: Pink →right arrow →right arrow →right arrow →right arrow Green
If you are seeing a "password" prompt at a safe room door, it is likely part of a specific or bonus room common in many custom campaigns, but it is not a requirement to complete the main path of Cambalache 2. l4d2 cambalache 2 password
Custom campaigns like Cambalache 2 and Downtown Dine are notoriously more punishing than standard Valve maps. Use these strategies to survive the horde: To unlock the secret dynamic room in the