second and third themes of mother base from peace walker
sources: https://www.youtube.com/watch?v=h2jV3zdTRGU&pp=ygUvbWV0YWwgZ2VhciBzb2xpZCBwZWFjZSB3YWxrZXIgbW90aGVyIGJhc2UgdGhlbWXSBwkJ2goBhyohjO8%3D
https://www.youtube.com/watch?v=fYTza9olVYU&pp=ygUvbWV0YWwgZ2VhciBzb2xpZCBwZWFjZSB3YWxrZXIgbW90aGVyIGJhc2UgdGhlbWU%3D
