- Login to the Game Control Panel (https://game.auxilex.com) and click on Commandline Manager.
- Click "Edit" on an existing commandline or click "New" to create a new one.
- Check the "Select" box next to the Map & Options field.
- Set the Map & Options field to Extinction_WP, Aberration_WP, TheCenter_WP or ScorchedEarth_WP and click "Save".
- Finally, click "Select" to the right of the commandline in order to activate it.
Note: Make sure your server has been updated to the latest version using the Steam Update button if you have not already done so.