Don't bother defiling your memory with that bloody awful remake; go straight to the original. "Assault" is a very simple crisis involving unique and disparate characters forced into a frantic situation, trapped in a police station by a gang with vengeance on its mind. John Carpenter at his finest.
How pumped would you be to see medieval armies clashing using werewolves as shock troops? Alas, this is not meant to be, because Night Watch's idea of super-powered wizards and shapechangers battling is knights and cavemen clubbing each other. When Uwe Boll can direct a better medieval battle than you, take notice.