Return Fire has four specialized vehicles, each one with unique abilities. Each vehicle can carry a limited amount of fuel and ammo (which can be refilled at ammo tents and fuel depots) and can withstand different amounts of damage. If a land vehicle runs out of fuel it stops and the driver jumps out and runs away. The tank has a 360° rotating turret and the ability to fire at land or air targets. The helicopter cannot resupply itself with fuel and ammunition unless it returns to base, but can strafe at an angle. The M270 Multiple Launch Rocket System is the most armored vehicle, but the slowest moving. It has the ability to lay mines which can instantly destroy any land vehicle. The humvee is the fastest land vehicle and solely possesses the strategic ability to pick, move, and drop flags. Jeeps have the ability to over-inflate their tires and travel across deep water. They are the weakest vehicles, requiring only one hit to destroy. Only rotating missile turrets and drones are a regular threat to the player in the single player mode. If the player exceeds the boundaries of the map, a submarine emerges and fires a heat-seeking missile against the player.