Blazing Angels? Or Ace Combat?
I'm a forumite at Gamespot so I know WAY too much on games lol. If you thought that GoW was scary, try playing Half-life episode one when you are fighting off zombies in complete dark with only your flashlight (That's slowly running out) and 6 shells in your shotgun. The noises they make haunt my nightmares. Damn that shit was scary high. Pick up the orange box if you have a 360 or any Half-life game for that matter.