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.

In some other levels, the player controls a helicopter from a third person
perspective with unlimited ammo. The helicopter is controlled with both the
mouse (for direction) and the keyboard (for height).

The game features some improvements over its predecessor, like a high score
system and different difficulty levels.

Terrorist Takedown: Payback