Defend Ruglen Laboratory is a mission in Armored Core 3.

Defend Ruglen Laboratory - Controller AC2

Controller AC


Requester: Crest

Advance: 0

Upon success: 34000

Operation Area: Ruglen Laboratory

Enemy Forces: Unknown

Objective: Hold off Mirage's forces

Operation Code: Stray Sheep

Client Name: Crest

Place Name: Ruglen Laboratory

Start Time: 18:30

Security Level: 8

Estimated Success Rate: 43%

Recommended Raven Rank: C


Raven! Ruglen laboratories is being overrun by Mirage forces. We need immediate assistance.

Their attack seems to be focused on lab sector A. We've sent the bulk of our security force and a Raven to reinforce the area, but they're being overpowered.

We need you to buy us time while key research materials are moved out of harm's way. The invaders needn't be destroyed, but you must keep them occupied!



Cold Heart:You’re just in time Raven, we need all the help we can get!

Cold Heart:This area is clear, let’s head in and give the other AC a hand.

Fragile:This is Night Flyer. I need backup!

Fragile:Watch yourself, this is no ordinary AC!

Cold Heart:Aaagghh!

Laine Meyers:The gates will be unlocked once the research materials are secure. Be patient.


Laine Meyers:The gates are unlocked! Evacuate immediately!

Laine Meyers:You’re clear...what was that AC doing there?

Fragile:I'm alive... Who was that?

Laine Meyers:Why was that AC there?


Funds: 0c

Note: Cold Heart is an MT pilot in this mission.


The MWG-XCB/75 right-arm part can be unlocked during the mission. To unlock the part, destroy the enemy AC. The part may be purchased at the shop once you have completed the Assault Crest Facility mission.

This mission is where you first encounter a Controller AC. It is best to avoid destroying it and evacuate instead because the AC is dangerous for an under-equipped AC.


  • It is possible to save both Fragile and Cold Heart in the mission. Saving Cold Heart in particular will allow him to make the advance to a Raven.
  • As might be inferred from the appearance of a Controller AC and the recognizable Controller MTs, it is not Mirage that is attacking the laboratory.
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