Step in the shoes of Specialist Heavy Gunner Grant of the 6th Platoon US Marine Corps. Weeks earlier, members of your platoon were ambushed and taken prisoner by the Black Skulls, an elite North Vietnamese unit. Your mission is to find the hidden POW camp and rescue your friends. As you attempt to complete each objective, you'll experience intense jungle combat with heavy gunning. Marine Heavy Gunner features varied gameplay, such as squad-based action, solo mini-missions, and rail-gunning from vehicles.