Shoot enemies down and advance to the next level. As the game progresses more weapons become available and you will encounter more challenging enemies.
As a U.S Marine fighting through each city under siege, kill the leader in each terrorist cell. U.S. Military's sophisticated technology, superior firepower, coordinated land and air strikes on the battlefield made your entry point easy and possible.
The enemies are trying to enter your country and they are planing something big. America's finest agent was sent to destroy enemy base and kill them all. Destroy the base, kill all the enemies and get your base back.