Operation X (ACJA)

Operation X is the first special mission of Ace Combat: Joint Assault. This mission can be unlocked by completing all single-player missions in Hard difficulty.

Plot
The mission does not take place anywhere within the Joint Assault continuity, and is merely intended to test the players' skills.

Similar (if not, the same) in nature as the original Operation X from Ace Combat X: Skies of Deception, this mission pits the player against formations of all of the game's original aircraft, except the GAF-1 Varcolac. The enemy will attack in waves of two, except for the joint Apalis-Fregata formation at the beginning, and will spawn at different points in the map. Upon finishing the X-02/XFA-27 formation, the player will be attacked by a lone XFA and a FALKEN. As well, a Fenrir named "Dandelion" will spawn southwest from the center of the map, and will proceed to relentlesly hunt down the player once in range.

Targets

 * 2x XFA-24A Apalis
 * 2x YR-302 Fregata
 * 2x Cariburn
 * 2x Forneus
 * 2x XFA-27
 * 2x FALKEN
 * 1x FENRIR "Dandelion"