You still need to unlock EXTREME DIFFICULTY by default, far as I am aware.

If you change the difficulty in a combat zone, you need to refresh the map by loading a waypoint for the game to properly register it!

Click here to learn how to install mods

Author Transparency & Project Provenance

To maintain professional integrity and provide a clear record of my work history, modding requests, and verified community collaborations, please refer to the Development Archive: Project History and Provenance.