Secure Fortress NK-432 is a mission in Silent Line: Armored Core.
Information[]
Requester: Crest Industries
Advance: 0
Upon success: 64000c
Operation Area: AI Fortress NK-432
Enemy Forces: Pod MTs, Patrol MTs, Other (Unknown)
Objective: Destroy AI mainframe computer
Operation Code: Safecracking
Client Name: Crest
Place Name: AI Fortress NK-432
Start Time: 06:30
Security Level: 9
Estimated Success Rate: 13%
Recommended Raven Rank: A
Briefing[]
"A few hours ago, a major malfunction was registered by the system setup to monitor operations at all of our AI-controlled fortresses. The cause remains unknown."
"The problem is affecting all AI-controlled equipment, from mobile defense units to stationary security devices, everything has gone haywire."
"Emergency strike teams have been dispatched to those facilities where the problem is most widespread, but the initial feedback we're receiving is not encouraging."
"Fortress NK-432 is the facility proving most difficult to recapture. One attempt already failed, and we're hesitant to squander more of our assets on another try."
"What we require is the expertise that only a Raven can offer, please head to the fortress and destroy the AI mainframe computer. A Raven familiar with the facility will accompany you."
Enemies[]
- Feuerberg MTs
- Fly Paper MG Turrets
- Pod Unmanned Weapons
- Fortress AI AC
Consort[]
Funds:0c
- Eclair - Mandatory
Dialogue[]
Emma: "The mainframe computer lies deep within."
Emma: "You'll cover ground faster if you split up."
Emma: "The entire fort is controlled by the computer. Advance with care."
Eclair: "Roger."
Emma: "Energy surge detected. Move fast Raven!"
Emma: "Destroy the controls along the walls to advance."
Eclair: "Raven, do you copy? I can't advance until you've destroyed the controls."
Eclair: "I'm under attack, hurry!"
Eclair: "Lock released, moving up"
Eclair: "Raven, I'll destroy the controls here, that should open the gate."
Eclair: "Hang in there."
Eclair: "The gate should be open. Move up."
Emma: "An unmanned AC... Raven, open fire!"
Eclair: "Raven, I'm here."(if you take too long in defeating the AC)
Eclari: "Uaah!"(if she's killed)
Walkthrough[]
You are coming back to the same place from the first mission, but this time your task is not going to be as easy.
This mission is a gauntlet of multiple obstacles, which will require fast reactions to secure safe passage. The best type of AC for this mission is one that has a high energy defense due to the considerable amount of laser and pulse defense systems. Also a blade or high ammo-low cost weapon would be a good idea for all the locked doors you have to open by destroying their control panels. The main threat is the Pod MTs that never stop respawning in a couple rooms, and the amount of firepower the have may be weak, but they will kill a chance at an S-Rank if left unchecked.
Weapons that might work good are the chaingun, grenade launcher, the MCH-MX/GRP is a great EO core because they can kill the Patrol MTs without exposing yourself. Go heavy on this mission (i.e. a tank build with lots of AP and defense) and you should do just fine.
First off, after entering the first large chamber, go straight across and enter the next corridor. The next chamber holds bays that release respawning Pod MTs. It is best to pass through this room as fast as possible, do not waste your AP and ammo. The following room holds two turrets and two Feuerberg MTs holding position at the lower floor; they can be destroyed harmlessly, if you use a back weapon (such as a rocket launcher) and avoid exposure. After another corridor, you will find the room with the lock mechanism controls. Deactivate it, and then you may go back to the first large chamber and continue from there. Go to the upper level with another pair of Feuerbergs, which defend the gate that will lead you deeper into the fortress.
After a short cutscene, there will be two more Feuerbergs and a turret ready to open fire on you inside a tight glass-encased corridor. Destroy them all as quickly as you can, because soon a large energy blast will come from the emitters on the outside walls. You have to go through the next door to escape this attack.
The next room features another hazard, this time being laser emitters placed on the walls and the ceiling. They will activate as soon as you enter, locking you inside while random laser patterns are cycled. They cause light, but constant AP loss, and can come from multiple directions, so it is in your best interest to not linger in there. To make matters more urgent, Eclair will enter a similar chamber at the same time, finding herself locked and calling you for help. You will have to destroy six box-like control panels lined on the side walls in order to unlock both yourself and Eclair out of the danger rooms. Since they cannot be locked-on, you will have to force fire or use a weapon without a lock-on, preferably rockets. Fortunately, four of the panels can be sniped from the doorframe, leaving you with just two to deal with after actually entering the room. This will shorten the process considerably and help Eclair save AP. You then need to pass through the lasers to the other exit. Observe the laser patterns - there are three configurations that switch on in the order. Memorize them and time your move to enable clear passage.
Next one is another chamber with the respawning Pods, but this time you are going to be locked in. You have to fend off the enemies until Eclair returns the favour and unlocks the final gate for you. Be ready to snipe the Pods as soon as they arrive to minimize damage. Once Eclair unlocks the door, waste no time and leave for the mainframe chamber.
There, an AI AC awaits you. It is a reverse joint build with a laser rifle, EO core and orbit cannon. It has a tendency to back off while jumping repeatedly, making it prone to be cornered. After a while, Eclair will rendezvous with you, making it a 2v1 fight. Her rockets alone will help enough to take down the AI AC faster, so if you can survive to this point you are going to most assuredly defeat the final guardian of the fortress mainframe. Destroy the mainframe to complete the mission.
Unlockables[]
MHD-MX/BEE[]
After you get through the first Pod MT and past the room with the 2x Feuerberg room look to your right wall, near the door with the switch, to find the hidden panel. Destroy this panel and go through the vents until you find a box next to a pit leading back to the Pod MT room. In the box is your new head.
Alternatively you could destroy the panel on the ceiling in the Pod MT room and fly directly into the room with the head, entering the vents and bypassing the Feuerberg room.
MWG-GS/80[]
Just beyond the first Pod MT room there is a fork to go forward to the unlocking mechanism, or go left into a room full of boxes. Don't shoot boxes with red arrows on them or you'll destroy the part! Shoot only the blank boxes on top of stacks to avoid blowing up the room. After you make it to the other side of the room, on the ground.
CAW-TITAN4[]
Destroy the AI AC and don't let Eclair (your consort) die.
MWM-SM30/3[]
To earn this part, you have to destroy 30+ enemies and maintain a high amount of AP (at least more than 50%) after the mission is over.
This is probably the most difficult part to obtain in this mission. Clear the earlier parts of the fortress without getting hit by the Feuerbergs, and also destroy at least ten Pod MTs in the first spawn chamber. Take care to escape the blast room quickly, and pass through the laser room unscathed (getting hit by even one beam once may tank your chances of earning this part). In the second spawn chamber, destroy the Pods as quickly as possible, sniping them as they emerge (it is recommended to stay by one side to destroy at least half of them as soon as they appear). Once you have reached the AI AC with enough AP to spare, you can wait it out by taking cover behind pillars until Eclair arrives, then use her as an aggro distraction while you pummel the opponent from safe distance. Good luck.
Trivia[]
- This mission harks back to the Armored Core 3 mission: Defend Energy Reactor in multiple ways. The pulse energy emitters in the glass corridor chamber resemble the energy reactor defense mechanism. Likewise, the laser control devices in the subsequent chamber are similar to the emitter weakpoint present in that mission. Finally, both missions feature AI-controlled AC as the boss fight - although this time your objective is to destroy the target object, not defend it as before.