Tunnel Sabotage is a Main Mission in Armored Core 6 that takes place in Chapter 3. As part of our Armored Core 6 guide, we're going to share everything you need to know about Tunnel Sabotage.

Armored Core 6: Tunnel Sabotage

Armored Core 6: Tunnel Sabotage Guide 1
Image: Push Square

Below you'll find an overview of the Main Mission called Tunnel Sabotage. We'll provide a brief Walkthrough, an Objective Log, details of any Collectibles, and any additional information you might find useful.


Upon gaining control, work your way down into the facility, using the rocks as landing spots. Like the briefing said: while the place has been abandoned, it's still being guarded by mechs. Eliminate them all in the first room, then fly across the chasm. Upon reaching the objective marker, you'll find the target. You'll need to enter the Shield, and then you can destroy the device.

Once you've done that, you'll need to escape the tunnel quickly, so apply your Assault Boost and follow the way out. Keep an eye on your AP as it'll be constantly ticking down henceforth. When you get back out into the open air, you'll have finished the Mission.

Objective Log

  • Destroy the old device in the facility's center
  • Escape the underground tunnel


  • 130,000 COAM

Did you find this walkthrough for Tunnel Sabotage useful? For more information on Armored Core 6, including All Missions, check out our Armored Core 6 guide through the link.