Ace Combat X: Skies Of Deception
Successfully complete SP stage Operation X.
Unlock the Operation X stage, then successfully complete Campaign mode under the Ace difficulty setting.
Successfully complete Mission 03B.
SP stage Operation X
Successfully complete all missions and mission branches.
Stage 03B Captive City
Successfully complete Stage 05 or 06 before Stage 04.
Stage 07C Time Limit
Successfully complete Stages 07, 09, 11, and 07C in that order.
Stage 12C Wild Card
Successfully complete Stages 07, 08, 10, 09, and 12C in that order.
Successfully complete the game in Campaign mode under the hard difficulty setting.
Avoiding Meson Cannon attacks
To avoid the Meson Cannon attacks (even if it has the MBSR), fly over 600 mph or lower than the buildings
that have the cannon mounted on them.
Complete the indicated mission with the listed aircraft with an "S" rank to unlock the corresponding part
for purchase for that specific plane.
Earth Shaker cockpit ($34,200): Mission 03A with Apalis.
Sylph Wing wing ($55,600): Mission 01 with Cariburn.
Laser Extender weapon ($69,800): Mission 10A with Falken.
Diffusion Coat armor ($49,600): Mission 09A with Forneus.
Hydra Engine engine ($51,600): Mission 02 with Fregata.
Long Range MSSL weapon ($45,100): Mission 13A with X-02.
Scarface MBS weapon ($76,500): Mission 04B with XFA-27.
Complete the indicated task to be awarded the corresponding medal.
Air Guardian: Keep losses of the allied helicopters heading for Sachana Air Base to a minimum.
Bronze Ace: Destroy 200 enemies.
Bronze Defender: Maintain command of the skies over five minutes in Air Superiority.
Bronze Star of Victory: Win 10 multi-player battles.
Conqueror: Complete Campaign mode with all 17 missions finished.
Expert Marksman: Destroy 50 aircraft with guns.
Eye of the Storm: Defeat the Gleipnir.
Freedom Tower: Liberate Griswall.
Gold Ace: Destroy 1,000 enemies.
Land Guardian: Keep allied casualties at Stand Canyon to a minimum.
Mark of the Vioarr: Defeat the Fefnir.
Marksman: Destroy 5 aircraft with guns.
Sea Guardian: Keep damage to the allied fleet at Terminus Island to a minimum.
Sharpshooter: Destroy 15 aircraft with guns.
Silver Ace: Destroy 500 enemies.
Swift Hunter: Complete Campaign mode with only 10 missions finished.