>>324255598
Having some issues, but posting lobby code soon.
Since the other lobbies did it as well, we'll also be using the 0.4.4 MP mod. You can find it here:
https://github.com/Zingabopp/MultiplayerExtensions/releases/tag/v0.4.4

Unzip it into your beatsaber folder. 
You'll need to have the beat together mod installed through mod assistant as well for this to work. You can find that under the multiplayer section.