I really really want to like this game, but it's so frustratingly hard! I've been following a IGN.com guide that I printed out, but it's not helping too much - the dang save points are so spread out apart I end up dying and have to go back and replay so much again. Any pointers or advice? How important is it to save the straggling survivors you come across? So far I've been able to get to Case 1-4, but can't get back to a save point or the Security Office.