My idea of 4WP being abused: You run around a corner and start receiving fire from some bushes in front of you. You turn around and hide behind the wall you just revealed yourself from and map out the bushes your shooter seems to be in. Looking over your shoulder in 4WP you know you cannot see any around this corner, so you back up and lean out only showing roughly 20% of these bushes and you look for something to suddenly appear (a gun, some feet, a backpack ect.), you lean in and out quickly to make sure no "weird branch" is flashing while looking over your shoulder as you character gains vision and looses vision of these bushes. Repeat until you find your enemy. In this situation 4WP has a massive advantage making people in hiding suddenly appear and disappear within their surroundings. Yes you put yourself at a much larger risk than not looking around the corner at all but you will be able to find your enemy much faster and easier when it is literally flashing on your screen. Just a thought. Edit: Idea for 4WP: Rather than having people appear on your screen when your character can see them, your vision should be heavily blurred with what your character cannot see. As you move/look around altering what your character can see, the vision becomes unblurry with what he can see.