Labs_underpass_p.upk May 2026

No, you can ignore the universal Mods.upk file for this method.

Move your renamed custom map into the mods folder. Labs_Underpass_P.upk

Ensure the map you are using is up to date and correctly renamed. No, you can ignore the universal Mods

It is considered one of the best methods to load custom maps on PC. How to Set Up Custom Maps (Step-by-Step) Labs_Underpass_P.upk