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Maximum Clearance is the final step into unleashing the Allied arsenal. When researched at a deployed Allied MCV or a Deployed Prospector, it unlocks Tier 3 units from each production structure. The units available to the commander are as follows: Tanya at the Boot Camp, Mirage tank and Athena Cannon at the Armor facility, Century Bomber at the Airfield, and Aircraft carrier at the Seaport.