There are many, many enemies in this level that fire bullets at you. Several enemies also launch missiles at you and you have to be careful not to get hit too much. The three different types of vehicles that appeared in Fortress on the Sands return here except this time, all of them are parked, making them easier to destroy. They seem to be less durable here than they were in Fortress on the Sands. Two of them, however, are located inside a base built into a mountain, so you have to fly carefully through a tunnel going through either the front or rear of the mountain to enter the base and destroy the Trisuls inside. Be careful of the two gun pods in each tunnel. There are also several radar dishes, missile-launching P.A.C.-3s, and bullet-firing Z.S.U.-23 A.A.A.s you must destroy. The mission is completed once all targets are destroyed.
- Destroy all targets both inside and outside the mountain base.
The reward for this mission is 280,000 credits plus a variable amount depending on the number of enemies taken out and, in the case of the planes, how they were taken out. The Battle for Notos Sea is unlocked. The YF-23 Blackwidow and the StN-002 Temperance are also unlocked for 520,000 credits and 500,000 credits respectively.
It seems that another ship of exactly the same design as the "Aconcagua" that we destroyed exists. We have received information from captured enemy soldiers on the whereabouts of the secret dock where it is currently stationed. We have also learned that the remaining strength of the United Forces land forces is congregating there. Your mission is to attack the secret dock and destroy the mobile fortress. Over and out.
Delta Leader: Our mission is to destroy the enemy's mobile fortress in its secret dock. The enemy has hardened their defenses. Hope you're ready for a good fight, everyone.
[no dialogue during mission]
Main article: Falling Down/Soundtrack