I hate to draw parallels to video games concerning real world, life or death issues, but this is what you get for camping. Seriously though, these boys were literally camped out in this spot with bed rolls and blankets.
You can only exonerate these guys for making stupid deadly decisions so many times before you have to realize this is an issue of deeply embedded stupidity, rather than a lack of military training. How many times did these guys step out to blind fire and have accurate enemy rounds whizz past their heads, yet continue to do so from the exact same firing points? However, the camera was rolling, so the show must go on.