Here is the full list of all 50 Ace Combat: Assault Horizon achievements worth 1,000 gamerscore.
Sortied for 50 hours in competitive online or mission co-op.
Played on all maps in competitive online.
Used ASM to destroy 30 ground enemies in competitive online.
Shot down a large number of hostile players in competitive online.
Took down 5 hostiles with a direct shot.
Used DFM to destroy 10 airborne enemies in competitive online.
Saved an ally being targeted by hostile players in DFM in competitive online.
Used DFM support or ASM support to join a flight member.
Cleared all levels in mission co-op.
Joined the same DFM with two others and shot down a hostile (mission co-op).
Wiped out hostile ground forces with ASM.
Cleared 1 level in mission co-op.
Successfully switched from defense to offense 10 times with counter maneuvers.
Took down a hostile fighter with a charged homing missile.
Obtained all MVPs.
Used an attack helicopter and destroyed 10 missiles or bombs in competitive online.
Obtained and destroyed 10 enemies in a helicopter.
Destroyed an enemy aircraft using only the standard machine gun while piloting an aircraft.
Escape from a dangerous situation.
Destroy 5 hostile vehicles with helicopter gunfire.
Pass through an explosion and destroy the enemy.
Use an attack helicopter to rescue the captured pilot.
Protect allied ground forces with the gunship's firepower.
Deal with an emergency situation.
Eliminate all bombers and prevent the use of a weapon of mass destruction.
From a helicopter, support the special forces while they suppress hostile vessels.
Provide close-range aerial support to wipe out hostile ground forces.
Defend the allied base.
Weave through a hostile fleet's defense and rescue the hostage.
Prevent the launch of ICBMs by infiltrating the enemy base in a stealth bomber.
Eliminate your enemies to open a path for your allies.
Defend the capital.
Perform a risky move to save your friend.
Chase the enemy through a hurricane.
Thwart your enemy's plans and return alive.
Clear all missions.
Take down 3 hostiles in a row with an assault chain.
Successfully focus on 3 targets.
Defeat hostiles with all 3 of the gunship's weapons.
Massacre hostiles as the door gunner.
Successfully pursue 3 enemies with counter maneuvers.
Fly through the hotel gates.
Fly beneath a falling chimney.
Eliminate the enemy threat to fighters as quickly as possible.
Protect allied transports from being shot down during landing.
Fly a bomber and eliminate a large number of hostiles.
Master the assault chain and take down hostiles one by one.
Pilot all of the aircraft in the game.
Obtain an A rank for every mission (free mission).
Use Trinity to wipe out the enemy (free mission).