Here is the full list of all 24 Project Sylpheed: Arc of Deception achievements worth 1,000 gamerscore.
Awarded for participating in fighter combat in outer space.
Awarded for stopping enemy attacks on Schlos Base.
Awarded for escorting the 7 refugee ships to safety.
Awarded for bravery beyond the call of duty to escort allied vessels to safety.
Awarded for bravery beyond the call of duty under fierce enemy attacks.
Given to you by Raymond as a token of his trust.
Awarded to the commander and pilots of the White Griffon Squadron when it is formed.
Awarded for bravery beyond the call of duty during withdrawal of the allied fleet.
Awarded for diligently shooting down large numbers of enemy ships.
Awarded for descending into the atmosphere and engaging in combat alone.
Awarded for fulfilling duty and fighting bravely in this difficult operation.
Awarded for repelling the enemy Guilty Roses Squadron.
Awarded for shooting down the second S battleship supporting the enemy fleet.
Awarded for shielding the fleet to allow its safe escape.
Awarded for repelling the enemy Hellfire Squadron.
Awarded for challenging and eradicating the enemy Night Raven Squadron.
Awarded for great achievement during the campaign to defend the Solar System.
Awarded for heroism in destroying the enemy's main weapon.
Awarded for shooting down 1,000 enemy fighters and attackers in space combat.
Awarded for shooting down 10,000 enemy fighters and attackers in space combat.
Awarded for shooting down 100 warships in space combat.
Awarded for downing several enemy vessels with a combined weight of one gigaton.
Awarded for collecting all usable equipment for the Delta Saber.
Awarded to the greatest pilots in the TCAF.