Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which you play as Barney Calhoun, the security guard sidekick who helped Gordon out of so many sticky situations.
This mods changes the PC version of the soundtrack (OP4 Soundtrack) to the original Dreamcast version (HL Soundtrack).
ba_tram1: Changed Wastes of Limbo to Vague Voices.
ba_canal1: Changed Tunnel to Threatening Short.
ba_canal3: Changed Soothing Antagonist to Dark Piano Short.
ba_yard2: Changed The Awakening to Sirens in the Distance.
ba_yard5: Removed Spooky Oozings.
ba_xen1: Changed Danger Rises to Space Ocean.
ba_xen2: Changed Maze Rises to Cavern Ambiance.
ba_xen3: Changed Alien Forces to Dimensionless Deepness.
ba_xen5: Changed Schientific Proof to Nepal Monastery.
ba_power1: Changed Open the Valve to Hard Technology Rock.
ba_power2: Changed Name to Traveling Through Limbo.
ba_outro: Changed Race from Doom to Closing Theme.
Not Changed (Yet):
ba_maint: Add Steam in the Pipes.
ba_yard4: Change Soothing Antagonist to Military Precision (It's Dark Piano Short for now.)
Step 1: Download the .rar and open it with WinRAR/7Zip.
Step 2: Paste the media folder in your Blue Shift directory.