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

Siege of Farbanti is the penultimate campaign mission and the 17th mission of Ace Combat 04: Shattered Skies. This mission requires the player to divide attention between ground targets and fighter aircraft targeting from above. It is also the final engagement between Mobius 1 and the dreaded Yellow Squadron.


The enemy GHQ is located beneath a landfill on the coast of their capital, Farbanti. Bring it under control to end this war once and for all. Our troops will enter via the Silver Bridge to the southeast and the flooded city to the south. You must attack all enemy forces and support our troops. Enemy tank forces are also closing in from the north. Destroy Johnson Memorial Bridge to stop them from joining forces from the enemy GHQ. We know that Megalith is being developed as we speak. The enemy must be prevented from using it as their last ditch effort.


The player is given 12 minutes to accumulate 2,100 points. The enemy units spread across the Erusean capital are mainly tank units and AA artillery. There are also several higher-value naval vessels and fighter aircraft that can be destroyed to earn more points. Destroying Johnson Memorial Bridge also earns a higher point reward. It is recommended that the player use the Return Line at least once to rearm during the mission's duration. By the time 12 minutes have elapsed, the player should have destroyed enough ground targets alone to have ~2,400 points.

Mission Update

After the initial time limit runs out, AWACS SkyEye will alert the player that five Yellow Squadron fighters have entered the airspace. The player is ordered to engage the Yellow fighters. The ensuing dogfight is quite difficult, requiring the player to outmaneuver the Yellows' high-G aerobatics, while simultaneously avoiding their aggressive missile barrages. Once the last Yellow fighter is shot down, SkyEye confirms that the airspace has been sanitized, and the mission ends in success.

S Rank

An S rank is achieved on the mission by scoring 4,100+ points. Destroying the enemy naval vessels earns the player 580 points, and downing Yellow Squadron garners another 750 points. The leaves the player with roughly 2,770 points, which are earned by destroying the enemy tanks, helicopters, and AA artillery.

Named Units


On September 19th at 12:00 hours, Erusea accepted the ISAF terms for surrender. Our victory came at an extremely high cost in casualties.


  • The mission debriefing states that Erusea surrendered at 1200hrs, which is more than six hours prior to when the mission titlecard states the mission started (1820hrs). The reason for this discrepancy is unknown.


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