Walkthrough | Controls MGS V: Ground Zeroes Guide

Ground Zeroes is the only main mission in the game. We have to rescue two prisoners, Chico and Paz and we can also rescue a convict and a few captives. It is suggested to first rescue Chico and then Paz. The order can be changed and you will have to do exactly that if you want to collect all the Cassette Tapes.

The captives can be rescued in any time of the gameplay, but you will only have the opportunity to rescue the convict a short while after setting Chico free.

The missions can be accomplished in many ways, but if you aim for a good score/high rank, time is the thing that matters. Staying unnoticed and not killing the enemies also counts, that's why the game guide describes paths that will allow you to quickly move from one point to another, without killing any enemies.