and you are sitting there leaning against the humvee and saying what the fuck what the fuck what the fuck and the marine screams in your face shut the fuck up and you do and you hear a whole shitload of shots hit the humvee and a few whistle overhead and you think its true you can hear the bullets go , and you see the marine crawl around to the ass end of the truck and take a quick look , and then he sits back for a second and charges his rifle , and then he whips around and he lets loose , and you look down at your m-16 and you can not remember how it works .