Local network (Storm)
In that menu you can create a local server ingame as long as you stay on the server (if you host it).
You can create a local server by going into the Local Play menu and clicking into the “Create” button.
Click on the script textfield to change the gamemode (not enabled in a title pack except Storm)
If you click on the advanced button, you’ll see several new options, the most important fields are the passwords if you want restrain the access.
Then you have to choose the maps to run on the server between the default ones and your self-made or downloaded maps.