The Advanced Short Range Air-to-Air Missile, abbreviated XSAA, is a special weapon featured in Ace Combat: Assault Horizon Legacy.
It is capable of locking on to 4 aerial targets at short range, essentially making it a close-quarters counterpart to the XMAA and XLAA.
Ace Combat: Assault Horizon Legacy
The XSAA has an identical lock-on range to the regular missiles, making it mildly effective at engaging multiple targets at very close range. It is also useful for dishing out heavy damage on theZ.O.E. aircraft following an Attack or Evasive Maneuver.