Armored Core Wiki

Defend Naire Bridge is a mission in Armored Core 3.

Naire Bridge 2

Naire Bridge in the process of being constructed.


Requester: Mirage

Advance: 0

Upon success: 13000

Operation Area: Naire Bridge Construction Site

Enemy Forces: MTs (Unknown Number)

Objective: Destroy all enemy forces

Operation Code: Zip Up Lips

Client Name: Mirage

Place Name: Naire Bridge

Start Time: 21:12

Security Level: 3

Estimated Success Rate: 74%

Recommended Raven Rank: D


Naire Bridge, a work in progress, has been seized by forces threatening to destroy it unless construction ceases immediately.

The project is one of great importance, literally bridging the gap that has impeded trade between the two neighboring districts.

Those holding the bridge are thought to be part of a smuggling ring that has benefited from the situation.

The smugglers disguised themselves as bridge workers and commandeered their MTs. The bridge's construction must not be delayed, eliminate those holding it.



Smuggler:A Raven...I guess they decided to ignore our warning. Squad, I want this AC turned into scrap.

Laine Meyers:There isn’t much room to maneuver, watch your footing.




The CHD-04-YIV head part can be unlocked during the mission. To unlock the part, follow the following directions:

This part can be found immediately below the main bridge near the mission starting point. To reach this area, jump down to one of the side bridges and walk to where it ends. Turn to the opening below the main bridge, and land on the nearby scaffold. There should be a large gap existing between this scaffold and the area below the starting point. Begin flying in that direction and land on the highway. You will find the part at the edge of this highway. After obtaining the part, complete the mission to unlock it. This hidden part can be obtained even with the starting AC.

Afterwards, fly back onto the top of the bridge and begin flying forward. eventually you will find another section of the bridge with the remainder of the enemies. Be careful when landing, because the left side of the bridge will be slanted, and will fall away when you land on it.

The S-rank just requires speed and is easy to obtain once you don't have to worry about grabbing the hidden part.