Customise the Beat Saber multiplayer intro animations text and sound effects as seen in this video.

The text is changeable from within the games "MP Intro" menu and the sound effects have to be placed in a folder in ./UserData/MultiplayerIntroSounds/

Folder structure: (all files are optional and if it's not found the default sound will play instead!)

./UserData/
 - MultiplayerIntroSounds/
   - YourFolderNameHere/
     - Buildup.ogg
     - Ready.ogg
     - Set.ogg
     - Go.ogg
     - Icon.png

Example sound replacement

Note on the default sounds:
the Buildup clip plays first and lasts for the entire duration of the animation
the Ready, Set and Go clips play on their respective text popups