Following is a list of all missions in Ace Combat X: Skies of Deception.



# Title / Operation Date Location
Skies of Deception Cape Aubrey
Gryphus 1 stops a Leasath Air Force bomber squadron from destroying his home base, Aubrey Air Force Base.
Out of the Fire Puna Plains
With the nearly loss of his squadron due to the Gleipnir's SWBM attack, Gryphus 1 assaults Puna Base, surprising Leasath soldiers and forcing them to abandon the base.
Prelude Port Patterson
Gryphus 1 assaults Port Patterson, preventing enemy amphibious assault fleet from entering the port.

Part 1

# Title / Operation Date Location
Captive City Port Patterson
With the loss of Port Patterson, Gryphus 1 attacks the Miller Unit, an elite Leasath special forces unit, from settling into the port complex, taking back the port.
Last Line of Defense Kingshill
Gryphus 1 prevents the Miller Unit in Kingshill from taking back Port Patterson.
False Target Kingshill
Gryphus 1 prevents a Leasath munition supply for the Gleipnir from reaching Santa Elva.
Rolling Thunder Stand Canyon
Gryphus 1 saves the allied Davis Unit that was cut off from the main force in Stand Canyon.
Pinned Down Stand Canyon
The Davis Unit is almost destroyed, when Gryphus 1 is able to hold off the enemy until allies arrive to drive back the enemy.
The Midnight Sun Terminus Island
Gryphus 1 prevents the allied fleet from being decimated by destroying the Gleipnir's optical camoflauge system and SWBM launch ports, forcing the Gleipnir to retreat to Santa Elva.
Ice Bound Terminus Island
An Aurelian scientist is rescued by an allied submarine, the Naiad, with the help of Gryphus 1, but the Naiad is later forced to surface after hitting a mine. Gryphus 1 stops the Naiad from hitting an iceberg and being sunk by enemy aircraft.
Standoff in the Skies I Santa Elva
Gryphus 1 takes on the badly damaged Gleipnir, with its optical camouflage disabled and SWBM destroyed. At first, it uses conventional weapons, but later uses the Shock Cannon. Gryphus 1 is able to destroy the airborne fortress by targeting the Shock Cannon.
Standoff in the Skies II Santa Elva
Gryphus 1 takes on a fully powered Gleipnir over Santa Elva in the process when the Gleipnir is destroying the allied ground forces rescued at Stand Canyon, destroying the optical camouflage system and SWBM ports. The Gleipnir attempts to use the Shock Cannon on the city, but is shot down in its descent.

Part 2

# Title / Operation Date Location
Time Limit Santa Elva
The Hamlet Unit, a biological warfare special forces unit, enters Santa Elva and releases Cynocrine into the city. Gryphus 1 neutralizes the toxic gas and defeats attacking Leasath fighters.
Striking Point Kalana Steppes
Enemy forces settling in the Kalana Steppes are destroyed by Gryphus 1, despite reinforcements from Sachana Air Base.
The Wasteland Kalana Steppes
Enemy forces, including the Hamlet Unit, gathering in the Kalana Steppes and preparing to assault Santa Elva, are destroyed by Gryphus 1.
Blitz Sachana Air Base
Gryphus 1 has to fly past an enemy radar network, patrol boats at the Raven Woods and the river before assaulting Sachana Air Base, destroying enemy aircraft, tanks and the Skylla Unit, an elite anti-air special forces unit.
A Diversion Sachana Air Base
With the Skylla Unit has left Sachana Air Base, Gryphus 1 escorts an allied transport helicopter unit into the base to secure it.
Joint Operation Monte Breeze
An Aurelian reconnaissance team infiltrates the Monte Breeze Industrial Area to detect enemy transport activity. Gryphus 1 is sent in to destroy the transport planes carrying Meson Beam Stabilizing Regulators to Griswall.
Break In Monte Breeze
Gryphus 1 prevents more transports from leaving Monte Breeze, but a group of resistance fighters calling themselves the Aurelian Liberation Corps tries to infiltrate the factories there, which have been rigged with explosives. Gryphus 1 destroys all land mines and booby-trapped factories, rescuing the ALC fighters.
In Pursuit I Mount Nevera
Gryphus 1 destroys the Nevera Jammer, giving a clear view of the capital and Monte Breeze.
In Pursuit II Mount Nevera
Gryphus 1 destroys the Nevera Jammer, giving a clear view of the capital and Monte Breeze, in spite of the Skylla Unit's efforts.
Gaiuss Tower Griswall
Gryphus 1 leads the allied Victor Regiment into the Atmos Ring, overcoming the Leasath occupation forces defending Griswall, as well destroying the Meson Cannon. The allied troops liberate Griswall by taking the enemy central command, the Gaiuss Tower.
Atmos Ring Griswall
With the MBSRs brought in from Monte Breeze, Gryphus 1 destroys the enhanced Meson Cannon, as well as all enemy aircraft, liberating Griswall.
Wild Card Griswall
The Aurelian Liberation Corps have found their way into the capital and have driven enemy forces out. Gryphus 1 is sent to destroy all enemy forces that are attempting to overrun the ALC and the defense perimeter, but the Skylla Unit appears and use their rocket launcher trucks to fire missiles at the defense perimeter. Gryphus 1 shoots down all incoming missiles and the capital is liberated.

Part 3

# Title / Operation Date Location
Alect Squadron Danern Straits
Gryphus 1 is sent to defeat the elite Alect Squadron before they can take control of Leasath's advanced fighter aircraft at Archelon Fortress.
Armada Danern Straits
Alect Squadron has already arrived at Archelon Fortress, but the Leasath Navy is sending a large fleet to reinforce the fortress defenses. Gryphus 1 sinks the fleet.
Fire Storm Cobalt Cave
Gryphus 1 is sent to destroy the High-Powered Microwave weapon before it can be equipped on Leasath's advanced fighter aircraft.
Offline Cobalt Cave
The High-Powered Microwave has already arrived at Archelon Fortress. In order to reduce its tracking potential, Gryphus 1 destroys Leasath's radar antennas surrounding Cobalt Cave, as well as the cave's underground control facility.
End of Deception I Sentry Island
The High-Powered Microwave has been equipped on Leasath's Fenrirs. Despite the advanced weaponry, Gryphus 1 shoots down all four Fenrirs that took off from Archelon Fortress, as well as a Shock Cannon mounted to the top of the fortress.
End of Deception II Sentry Island
Alect Squadron has taken command of Leasath's Fenrirs. Gryphus 1 shoots down all four Fenrirs that took off from Archelon Fortress, but a fifth Fenrir is about to take off. Gryphus 1 enters the fortress and destroys it within the tunnels, flying out on the other side before the fortress is destroyed.


# Title / Operation Date Location
Operation X Kalana Steppes
Unlocked by completing all other missions.

The player takes on all of the game's fictional aircraft in an "arena" match, save for the Fenrir. The final targets are four ADF-01s and, depending on the circumstances, a Z.O.E. ADF-01 and a Scarface 1 XFA-27.

Unlocking missions

Each mission number corresponds to a specific map and location in Aurelia or Leasath. Different missions (A/B/C variants) for a given mission number are unlocked depending on the order in which the player takes missions.

Some missions have specific or otherwise non-obvious requirements:

  • Captive City (03C): Do not play Last Line of Defense (04A), allowing the Miller Unit to retake Port Patterson. This also unlocks False Target (04B).
  • Time Limit (07C): Play missions Blitz (09A) and In Pursuit I (11A) without playing Striking Point/The Wasteland (08A/08B), allowing the Leasath units on the Kalana Steppes to counterattack Santa Elva.
  • Griswall liberation (mission 12):
    • Atmos Ring (12B): Allow the MBSRs to reach Griswall. This is done by playing In Pursuit I/In Pursuit II (11A/11B) before advancing on Monte Breeze, which results in Break In (10B) being available instead of Joint Operation (10A).
    • Wild Card (12C): Allow the Skylla Unit to reach Griswall. This is done by playing Striking Point (08A), Joint Operation (10A) and A Diversion (09B) in that order. Do not play In Pursuit before these missions.
    • Gaiuss Tower (12A): Do not meet either of the above conditions. This can be done by playing mission 08 immediately after 09 or vice-versa.

Obtaining the "Conqueror" medal requires playing both 03C and 07C.


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