Here is the full list of all 49 Final Fantasy Type-0 HD achievements.
Completed Chapter 8 "Verdict: Finis."
Completed Chapter 7 "Fate of the Crystal - The Endless Battle."
Earned an S-Rank on a mission.
Completed Chapter 6 "Terra Mortis - Khalia's Decision."
Completed Chapter 5 "The First Battle of Judecca."
Completed a secret training session.
Completed Chapter 4 "The Last Queen's Return to Oblivion."
Cleared 15 missions.
Searched 15 surrendered imperial soldiers.
Defeated a total of 20 enemies in combat simulation sessions.
Completed Chapter 3 "Weapons of Mass Destruction."
Searched 3 surrendered imperial soldiers.
Completed an SO.
Harvested 500 phantoma.
Collected 5 Knowing Tags.
Hatched 5 chocobos at the chocobo ranch.
Won 50 encounters in the overworld.
Landed Killsight strikes on 100 enemies.
Completed Chapter 2 "Raise the Vermilion Banner."
Forged a covenant with an Eidolon.
Defeated 300 enemies.
Took down 100 imperial soldiers.
Dodged 500 enemy attacks.
Harvested 100 phantoma.
Won a 5-battle chain encounter in the overworld.
Cleared 3 missions.
Defeated 100 enemies.
Sat in on one of Moglin's lectures.
Completed a mission without allowing any casualties.
Defeated an enemy with the explosion from a fuel tank.
Won an encounter in the overworld.
Completed Chapter 1 "War - Three Hours That Changed the World."
Landed Killsight strikes on 20 enemies.
Took down 20 imperial soldiers.
Earned the "An Army of One" bonus.
Earned the "A Lonely Battle" bonus.
Earned the "A Select Few" bonus.
Forged covenants with 6 Eidolons.
Avoided the penalty for failing an SO.
Collected 25 Knowing Tags.
Acquired the airship "Setzer."
Shot down 50 enemies with the Setzer.
Captured a chocobo.
Captured 30 chocobos.
Hatched 100 chocobos at the chocobo ranch.
Defeated a total of 100 enemies in combat simulation sessions.
Liberated and visited all cities in the Dominion of Rubrum.
Talked with the moogles from all thirteen classes.
Completed a mission using only Primed cadets.