Advanced Control Unit

 is an assembled item used in one mission and commission.

Obtaining
can be crafted using the Assembly Station after obtaining the diagram from Ursula at the start of the  Road to the Marsh mission if they choose the western route.

Alternatively, the diagram can be purchased at the Research Center Exchange after the mission.

Mission
One is used in Road to the Marsh mission.

Commission
is occasionally requested on the Commissions Board in Rank SS commission.