Each new breakthrough brings you a little closer to understanding the technology and culture of the alien races. Successful ground assault missions will allow X-COM scientists to analyze alien items. Tackle the aliens with automatic rifles, rocket launchers, and even tanks in the struggle to retrieve useful technology, weapons or life forms.
Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site. You are in control of X-COM: an organization formed by the world’s governments to fight the ever-increasing alien menace.