The Backrooms in DBD

Ethromel

A stage designed as the Backrooms with occasional flickering lights and the correlating florescent buzz. This could be an event that has a timer. There would be random portals on the wet carpet throughout the hallways that waves and shimmers subtly where (during a chase) a survivor can run over it, and it will instantly teleport them to a different hallway in the Backroom. The killer cannot travel through the portals. If you do happen to survive the timer all surviving survivors will be teleported to the exit door of the rooms to leave.