Silent, but Deadly

You slowly crawl down into the entrance of the bunker. Inside, is a radio operator who has occupied himself with self-pleasure while drooling over an Arab porn magazine. His attention has been somewhat sidetracked from his duties. It seems that his "hands-on" training is not paying off.
You grab the bayonet from your rifle and quietly enter the bunker. He does not notice you(I wonder why!). You grab him by the head and slice into his neck severing his bloodlines to the brain. The radio is still in operation. You take the bloodstained knife and cut the wires to make the radio inoperable.
It is time to figure a way to get to the top of the observation tower and destroy the radar. You head out into the desert darkness and try to figure out what to do next.
A figure lies right beside you. He is either wounded or in some type of trouble. You pull out your knife and raise it up high to finish the job in one complete motion. He begs for mercy and explains that he is an American fugitive trying to rescue his men from the holding cell. He says he will help you if you help him free his men.