This game is basically developed for the defender of land. When enemys air force strike on your countrys assets then these guns are used to shoot them down. If you love hitting the big bullets on Airplane or any other aircraft then this is your game. When enemy army attacks you then your quick action is to strike them back hardly. Hit accurately so that the mission your suppose to complete will help you open the next level. You have heavy anti air craft guns with you. You are skilled defender. Just click the fire button and shot them down. Drive your anti air craft gun to the point where enemy can strike and prepare yourself for the mission. When you complete the mission your next level automatically opens. In this game when you earn the points then you can buy the heavy machinery and other fighting equipment. You will experience 3D graphics of the environment. Sound effect is thrilling and good quality.