Retrieve Secret Files is a mission in Armored Core: Master of Arena.


Sender: Lana Nielsen

Requester: Izumo Materials

Reward: 33000

Theater of operations: Isaac City Underground Passage

Enemy forces: Unknown

Objective: Destroy the Armored Car

Mission Area: Isaac City

Mission Scene: Underground Passage

Safety Level: 73


Izumo Materials' research group was just attacked and top-secret files stolen. The attacker escaped through the city's Underground Passage and is still at large.

Security forces have been deployed, but our assistance has also been requested. Find and destroy the Armored Car that the thief has commandeered.

The Armored Car is highly visible, and the thief can't run forever. He must have planned an alternate means of escape.

Your target is the Armored Car. Ignore all other enemies you may encounter. Act quickly.



[Lana Nielsen]: "The airport should be just ahead. Destroy him before he escapes."

[Lana Nielsen]: "Enemy AC detected and verified as Lucky Hopper, a member of the Sub-Arena. He’s a mobile, four-legged type AC. Be sure not to lose him."



  • You don't have to destroy Frog Man. It is possible to ignore him and end the mission by destroying the Armored Car.
  • If the thief reaches the helicopter the mission fails.

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