Discovery of Airborne Fortress is the seventeenth and final mission of Air Combat. Their HQ destroyed and vital infrastructure shattered, the coup forces have launched one last assault on the allied forces: they have deployed a heavy command cruiser, which is en route to allied airspace. Their final task, the player mission is to intercept the airship and destroy it before it arrived to friendly airspace.
"Urgent message! Enemy giant Airborne Fortress discovered. This may be your final task. Eliminate it before it reaches our air space! Good luck!"
- 4x Airship engines
- 1x Airship hull/bridge
- 6+ x Airship on-board weapons
- 1+ x F-22
- Money: N/A
- Unlock: Mission selection (if finished on Hard)