Some people may remember that Metal Gear Solid V: Ground Zeroes gives you the option to import music into the game. You will then be able to play this music on your Walkman (and there was also going to be a feature where custom music would play on the helicopter). Today Kojima posted a picture of this feature on the menu screen.
“I installed my favorite OST of “Pacific Rim” in the walkman that “GZ Snake” has and played the game with this song.”
As you can see this is the Xbox 360 version of the game. We can see some other options as well: Play Records, Trial Records, Backstory (maybe for those that are new to the series), Manual and Options.
“My current gen env for “GZ” gamecheck. PS3, 360, Tablet, router, AQUOS, headset, checksheet, PacificRimOST, Madomagi snack.”