US Combat Operation

US Combat Operation is a first person shooting game that you aiming at different enemies and shooting to kill. The first level starts out slow and is a good way to figure out how to mouse and the gun shoot. There is a small delay time to the mouse. It is best to double click it to be sure you get the shot in. The second level is harder; the targets move faster and you have to kill double the amount of people from the previous round. Later rounds have people moving up top, through and behind other objects, and it takes a lot better aim to move through the levels.