Hey you guys, after months of only being able to kill with melee, I discovered you can shoot things! Here are the steps. 1 - must have a gun equipped. You don't even get a gun until a couple of minutes into the main storyline, so that was part of my problem right there. 2 - must have bullets, and must "reload" when empty. 3 - to actually shoot, you "pull" the "trigger" on your controller. This is not one of the colorful buttons we all know about. It is black plastic and blends into the controller. It took me a long time to find it. It is on the right front of your controller facing your TV where you can't even usually see it. You have to find it by touch. I hope this helps somebody! [spoiler]OP, sorry, no offense ...[/spoiler]