In Call of Gun Fire Duty, you are a duty strike soldier who has been called upon to fight the evil forces. On the battlefield, you will have to use your machine gun to shoot down the enemy. You need to shoot them down to stop them from taking over the world.

Call of Gun Fire Duty is a free FPS (First Person Shooter) action game that puts you in the role of a soldier in the army. You are the only one who can shoot the enemy and save the world.

You will fight the enemy on the battlefield. You will be able to upgrade your machine gun and make it more powerful.

You will be able to choose from a variety of weapons. These weapons will include a rifle, a pistol, a sniper rifle, a machine gun, an smg, and a shotgun.