Rent Bravo Two Zero (1999)

It's the Gulf War and Andy McNab's unit is briefed to locate and destroy Scud missile launchers deep inside enemy lines. As the helicopter lands in complete darkness on the bleakest of terrain, each is carrying more than their body weight in equipment. Within 24 hours, their position is compromised and their radios malfunction. Cut off from base and facing dire weather conditions, they are in trouble. When it's kill or be killed, who will be tough enough to survive?