Full list of all 16 Metal Gear Solid V: Ground Zeroes achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Clear any mission (including Side Ops and Extra Ops) with a S-rank
Clear a Side Op or Extra Op
Obtain all XOF unit patches
In the "Ground Zeroes" mission, rescue the prisoner to be executed and extract him via chopper
Clear the "Ground Zeroes" mission
Reunite with Chico or Paz
Clear all missions (including Side Ops and Extra Ops)
Clear all missions (including Side Ops and Extra Ops) with a S-rank
Clear the "Eliminate the Renegade Threat" Side Op by extracting both targets
Clear the "Intel Operative Rescue" Side Op without killing a single enemy
Clear the "Classified Intel Acquisition" Side Op while riding in the back of a truck
In the "Destroy the Anti-Air Emplacements" Side Op, rescue and extract all prisoners via chopper
Recreate all scenes in the "Déjà-Vu" Extra Op
Clear the "Jamais Vu" Extra Op with 0 enemy combat statuses
Unlock all trials
Obtain all cassette tapes