Red Alert 3 - Allies Mission 6 Mt Rushmore - Hard Difficulty - EASY METHOD!

My goal is to find a very easy way to beat each of the missions in Red Alert 3 on hard, so that anyone can follow along and beat the campaigns easily. The infamous Mount Rushmore mission can be beaten without breaking a sweat! Quickly build up your economy and a brigade of infantry to defend your base. Then get Tanya, three engineers, four Century Bombers, and of course a spy to disable their power for a crucial moment. Then Tanya does her thing! (Her death at the end of the mission wasn't intended, but it doesn't matter since she took out the weapon facility before dying.)
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Allies Campaign Mission 6: Mt. Rushmore - A Monument To Madness. Command & Conquer: Red Alert 3.
Mission completed on Hard difficulty, version 1.12 of the game (newest patch). 100%+ completion, meaning all bonus objectives complete, no secret protocols/support powers used, and no giving orders to co-commander.