Better is the cover system. Tap the right shoulder button and you'll take cover behind the nearest object. If you see it in the environment, you can probably take cover behind it. That includes walls, dumpsters and cars. You can aim while in cover and when you hold the trigger to fire, you'll pop and shoot. You can also blind fire rather effectively with any weapon -- including an RPG. The cover system is fairly smart, so if you want to move from one side of a door to the other, just push towards where you want to go and tap the cover button. This also works when you are fairly far from cover. Niko will roll or perform a slick slide to get to safety quickly. There is a stickiness to the cover system similar to Gears of War, but since the cover button isn't tied to your run button, you never accidentally enter cover.