Terrorist Takedown: Payback is the sequel to Terrorist Takedown, and it is often labeled as a standalone expansion pack. It features 10 missions with the same gameplay of its predecessor: a first person rail shooter with some third person helicopter levels. In the first person levels the player has to take down enemies with machine guns and cannons mounted on helicopters or HMMVVs. Sometimes the player controls a stationary gun. When controlling a machine gun, a “heat” meter is shown and if the gun overheats, the player has to wait for it to cool down until it can shoot again. The vehicles the player is in have a damage meter at the screen’s bottom left.The game features some improvements over its predecessor, like a high score system and different difficulty levels.