How to roll around

The Metal Gear Solid 1 song Encounter (Alert) was beautifully remade for Ground Zeroes Deja Vu mission.

You can find a YouTube link of the song here:

For the GZ section, I have read that each 'special' prisoner/character/extractee is flagged individually, and that each one can be extracted in separate runs of the mission they appear in, so long as that mission run is played to completion, and Snake leaves Camp Omega safely.

For the TPP section, there is a screenshot floating around from a strategy guide that shows the special volunteers from GZ being introduced gradually over the course of the first few early episodes of TPP, rather than dropping all of them on you immediately after downloading your GZ save.