How to Get the Surface-to-Air trophy in Prototype

Trophies and achievements have become the gold standard for measuring the completion of games on the Playstation 3 and the XBox 360 respectively. Completing all of them is the best way to show your devotion to a particular game. Prototype is no exception, and this video will show you how to get the surface-to-air achievement in the game, which mainly consists of shooting down 50 helicopter using tanks. Good times.