Here is the full list of all 50 Ace Combat: Assault Horizon achievements worth 1,000 gamerscore.
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 a hostile fighter with a charged homing missile.
Take down 3 hostiles in a row with an assault chain.
Wipe out hostile ground forces with ASM.
Successfully focus on 3 targets.
In a helicopter, obtain (zoom in) and destroy 10 enemies.
Defeat hostiles with all 3 of the gunship's weapons.
Massacre hostiles as the door gunner.
Take down 5 hostiles with a direct shot.
Successfully pursue 3 enemies with counter maneuvers.
Successfully switch from defense to offense 10 times with counter maneuvers.
Fly through the hotel gates.
Fly beneath a falling chimney.
Eliminate the enemy threat to fighters as quickly as possible.
Use the standard machine gun to defeat an enemy.
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.
Shoot down many hostile players in competitive online.
Use DFM support or ASM support to join a flight member.
Save an ally being targeted by hostile players in competitive online.
Play for an extensive amount of time in competitive online or mission co-op.
Clear all levels in mission co-op.
Join the same DFM with two others and shoot down a hostile (mission co-op).
Pilot all of the aircraft in the game.
Clear 1 level in mission co-op.
Use DFM to destroy 10 airborne enemies in competitive online.
Use ASM to destroy 30 ground enemies in competitive online.
Use an attack helicopter and destroy 10 missiles or bombs in competitive online.
Play on all maps in competitive online.
Obtain an A rank for every mission (free mission).
Obtain all MVPs.
Use Trinity to wipe out the enemy (free mission).