In this film, National Guard cadets are sent in to clear the area (presumably the script didn't call them the army so that they didn't have to explain why one or two of them are in worse physical shape than I am) and the killing continues. Trust me why I say that I expected the film to suck. It's 90 minutes of the director saying "Let me show you that the next killing will be grosser than the last," but he carried it off with a certain flair.
It was stupid, but enjoyable at the same time.