MTV: In case you haven't heard, "Killzone 3" is out today. For first-person shooter fans, PS3 exclusives don't get much bigger. But this installment is a bit of an odd bird. With most games, a review can be summed up into, "the game is good" or "the game is bad." As it turns out, "Killzone 3" is both. What you're looking to get out of it is really going to determine whether it's worth your hard-earned money, as certain aspects are much better executed than others. So pay attention: This post is going to determine the fate of your $60.