This article is about an in-game mission. For the in-universe event, see Battle of Monte Breeze.

Joint Operation is a mission in Ace Combat X: Skies of Deception.


"A recon team has infiltrated Monte Breeze and uncovered suspect enemy movement. It appears that Leasath used several of the large industrial complexes scattered throughout the area to produce some type of weapon. Unfortunately jamming from Mt. Nevera is preventing us from gathering any further details. The presence of numerous transport aircraft, however, has led us to believe that, whatever the cargo is, they plan on taking it it to Griswall. There isn't enough time to prevent the transport aircraft from taking off, but we should be able to utilize their radar jamming to shield our approach. If the enemy succeeds in escaping from the combat zone, we won't be able to follow. A lightning strike before they have time to react should prevent their escape. However, enemy jamming will render both radar and radio useless during the operation. Instead, recon has made arrangements to transmit the position of the transport aircraft via infrared. Your mission is to work with the recon unit to track and shoot down all transport aircraft. The mission will be considered a failure if any escape. We don't know what cargo is stowed within the transports, but there can be no doubt that it doesn't bode well for us.


The player must shoot down the transports before they escape. However, the player will face heavy radar jamming during the mission, hiding enemies from radar and requiring manual aiming of guns to shoot down targets. The transports also have lasers in addition to several escorts.

The jamming periodically weakens, allowing the player to see enemies on the map and launch missiles (any missile in flight will continue tracking its target even when jamming is restored).

Enemy Lists

Standard Units

Unit Points Count Notes
Icon-AirTGT XC-01 550 6
Icon-AirEnemy MIR-2000D 360 2
Icon-AirEnemy MiG-31 500 2
Icon-AirEnemy MiG-29A 320 2

Special Units

Unit Points Minimum
Icon-AirEnemy C-5 400 Easy Star Unit. Unlocks Tracer when shot down. [note 1]
Icon-AirEnemy Su-27 "ACRUX" 720 Normal [note 2]


To earn an S-Rank, the mission must be completed in under 6 minutes.


"All transport aircraft that took off from Monte Breeze have been destroyed. They were trying to escape with MBSRs. Apparently they are used to intensify the Meson Cannon's beam. It gives me chills just to think about what might happen had those things been delivered.


  1. Appears when several fighters are shot down
  2. Appears in the center of the map at the beginning of the mission.


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