The Patriot Missile Site is the Allies' main anti-air defense structure.
The Patriot Missile Site is the standard anti-aircraft defense for the Allies. The missiles are guaranteed to hit their mark, and are the most powerful anti-aircraft defenses when it comes to damage per shot. However, they are dedicated anti-air defenses, and thus cannot target and engage ground targets.
The Patroit Missile Site first appears as an buildable structure in Red Dawn Rising alongside the other Allied buildings, at the beginning of the Third Great War.