"Battle in the Base - Metal Gear Solid 3: Snake Eater" is a high quality rip of "Battle in the Base" from Metal Gear Solid 3: Snake Eater.
This rip is a mashup of "Battle in the Base" and the song "Psycho Bitch" by Tech N9ne.
When viewing this rip on YouTube, at 2:00, the music abruptly stops. It is unclear why this happens, but it's most likely some sort of error that arose when the rip was first uploaded. In the albums The Phantom Rips: SiIVa has come to and The Phantom Rips: Subsistence, this sudden stop doesn't occur and the rip plays out in its entirety.