This article is about an in-game mission. For the in-universe event, see Operation Stone Age.

Lying in Deceit is the 13th campaign mission in Ace Combat Zero: The Belkan War. It is similar in format to Bastion; the player must destroy a large number of enemy forces in the time limit.

This is the first mission to feature PJ as the player's wingman.


We have discovered remaining enemy troops gathered in the Yering Mine area, in northwest Belka. Numerous divisions of the Belkan army refuse to accept the change in government and are disobeying the command to disband. Your mission is to clear out the remaining Belkan troops, and if the reports are accurate, there are still plenty of them. The Heierlark Base, located in Osean territory, has been arranged for your refueling. If your tank is low, go there and they'll help you out. To compensate for losses in Galm Team, Crow Team will be joining you. We're counting on your best performance yet.


The player must engage and destroy the Belkan forces scattered around the area. Most of the formations are packed together, ambushing the player with a large number of SAMs and AA GUNs at once. There are also squadrons of enemy aircraft, though they can be shot down fairly easily. Once the player spawns, they have free will to fly to any targets on the map.

A Return Line is available on the west side of the airspace, allowing the player to rearm their plane if they run out of ammo.

Once the player reaches the score threshold of 20,000 points, the mission automatically ends.

Enemy Lists

The following enemy lists are taken from the Ace Combat Zero: The Belkan War Perfect Guide Book.[1]

Standard Units

Unit Points Count Notes
Icon-AirEnemy AH-64 300 5
Icon-AirEnemy F-35C 740 1 [note 1]
Icon-AirEnemy F-35C 740 3 Hard difficulty or below[note 1]
930 3 Expert/Ace difficulty[note 1]
Icon-AirEnemy F-35C 740 2 Hard difficulty or below[note 2]
930 2 Expert/Ace difficulty[note 2]
Icon-AirEnemy MiG-31 440 1 [note 3]
Icon-AirEnemy MiG-31 440 1 [note 4]
Icon-AirEnemy MiG-31 440 3 Hard difficulty[note 5]
550 3 Expert/Ace difficulty[note 5]
Icon-AirEnemy MiG-21bis 280 4
Icon-AirEnemy MiG-21bis 280 4 [note 6]
Icon-AirEnemy MiG-21bis 280 3 [note 3]
Icon-AirEnemy MiG-21bis 280 3 [note 4]
Icon-AirEnemy TYPHOON 700 2 [note 2]
Icon-AirEnemy TYPHOON 700 4 [note 7]
Icon-AirNeutral C-17 1000 1
Icon-AirNeutral C-130 800 1
Icon-GroundEnemy AA GUN 100 26
Icon-GroundEnemy AA GUN 100 [note 8]
Icon-GroundEnemy AA GUN 100 Normal difficulty or higher[note 8]
Icon-GroundEnemy SAM 120 15
Icon-GroundEnemy FLAK GUN 150 7
Icon-GroundEnemy TANK 150 17
Icon-GroundEnemy APC 100 13
Icon-GroundEnemy GUNBOAT 100 7
Icon-GroundNeutral CONT.SHIP 300 1
Icon-GroundNeutral CRAWLER 500 2
Icon-GroundNeutral STORAGE 300 8
Icon-GroundNeutral HANGAR 1000 1 XB-0 Hresvelgr hangar
Icon-GroundNeutral HANGAR 300 5

Special Units

AR # Unit Points Campaign
Ace Style Notes
Icon-AirEnemy 112 MiG-31 "Riese" 940 Very Easy Mercenary [note 9]
Icon-AirEnemy 113 F-15E "Beo" 1100 Very Easy Soldier [note 10]
Icon-AirEnemy 114 F-15C "Mondlicht" 960 Very Easy Knight [note 11]
Icon-AirEnemy 115 YF-23A "Grani" 1430 Very Easy [note 12]
Icon-AirEnemy 116 F-117A "Schatten" 1460 Ace [note 13]

S Rank

Achieving an S rank on this mission requires completing it in 15 minutes or less.[1] It is recommended to engage the sectors at the southwest of the map since these are closest to the Return Line. This minimizes the time the player will spend flying to and from the Return Line to rearm.


The mission to clear out remaining Belkan resistance was a success. As to the intended purpose for using the giant hangar described in the report, rest assured that Intelligence is looking into the matter.


  1. 1.0 1.1 1.2 These F-35Cs spawn north of the air base after the player fulfills some unverified condition.
  2. 2.0 2.1 2.2 These aircraft spawn in the far northeast after the player destroys any 12 ground units in that area.
  3. 3.0 3.1 These aircraft spawn in the center-west when the player earns 2,500 points and is not present in the spawn area or in the center of the map.
  4. 4.0 4.1 These aircraft spawn in the northwest when the player earns 10,000 points and is not present in the center-west spawn area or in the center of the map.
  5. 5.0 5.1 These MiG-31s spawn in the southeast after the player destroys all ground units in that area.
  6. These MiG-21bis's spawn south of the air base after the player earns 5,000 points and is not present in the spawn area or in the center of the map.
  7. These TYPHOONs spawn east of the air base after the player earns 7,500 points and is not present in the spawn area.
  8. 8.0 8.1 These AA GUNs respawn indefinitely until the player destroys the HANGAR.
  9. Riese spawns southwest of the air base.
  10. Beo spawns at the center-north of the map.
  11. Mondlicht spawns at the center-west of the map near the Return Line.
  12. Grani spawns in the center-east of the map if the player earns 8,000 points in the first seven minutes of the mission.
  13. Schatten spawns at the southeast corner of the map at the start of the mission. Schatten will fly towards the west, and then turn northward once they reach the Return Line. Schatten will then fly north and disappear at the northern boundary of the map.


  1. 1.0 1.1 Ace Combat Zero: The Belkan War Perfect Guide Book, pages 082-083.
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