Extract the 7zip file and install with SnakeBite

Does not require Main File.
Replaces mission 31/50 BGM with Metal Gear Rising Revengeance "Rules Of Nature" OST.

Does not require Main File.
Replaces mission 31/50 BGM with Metal Gear Solid "Hind D" (Phase 1) and "Escape" (Phase 2) orchestrated versions.

Does not required Main File
Replaces mission 31/50 BGM with Metal Gear Solid 3 Snake Eater Metal Cover.

Does not required Main File.
Replaces mission 31/50 BGM with Metal Gear Solid Peace Walker OST

Does not require Main File.
Replaces mission 31/50 BGM with Metal Gear Solid Peace Walker OST - Koi no Yokushiryoku song.