There are 15 achievements worth a total of 1000 points
Reunited with Chico or Paz
Cleared the "Ground Zeroes" mission
Cleared a Side Op or Extra Op
Cleared all missions (including Side Ops and Extra Ops)
Cleared any mission (including Side Ops and Extra Ops) with a S-rank
Cleared all missions (including Side Ops and Extra Ops) with a S-rank
In the "Ground Zeroes" mission, rescued the prisoner to be executed and extracted him via chopper
Cleared the "Eliminate the Renegade Threat" Side Op by extracting both targets
Cleared the "Intel Operative Rescue" Side Op without killing a single enemy
Cleared the "Classified Intel Acquisition" Side Op while riding in the back of a truck
In the "Destroy the Anti-Air Emplacements" Side Op, rescued and extracted all prisoners via chopper
Cleared the "Jamais Vu" Extra Op with 0 enemy combat statuses
Unlocked all trials
Obtained all cassette tapes
Obtained all XOF unit patches