This is an alternate Main Menu Theme from the Red Faction II Beta Demo. Part of it was recycled into the track Ambience_01 in the final game.
Installation instructions:
Unzip Music.zip
Go to your Red Faction II installation directory and open the PC_Media folder, then move the new music files into the Music folder. If it asks you to overwrite any existing files, say yes. Then launch Red Faction II and enjoy better sounding music.
Credits:
HeyItsDuke - Ripping the track from the PS2 Demo version and converting it to a high quality mp3.