During the mission when you have to kill Nacho, there will be a point where two snipers will guard one area. These snipers are deadly and will usually kill you. There are four ways to defeat them. The first is to conceal yourself and shoot the fuel barrels. They will generate a cloud of smoke that you can use as cover. Move quickly when doing this because the smoke does not last too long. After you shoot a barrel, advance and dive for cover. If you die doing this, this tactic can no longer be used the Xbox version, due to unexplained reasons. The barrels will disappear and the tanker may become invisible. The other tactic is to advance quick and slow. Dive for cover, then advance very slowly up there. If you go behind boxes with nothing stacked on top of them, you will need to duck. Once you get three-quarters of the way there and if you have plenty of life, storm up there and finish them. This can also be done another way; shoot as you advance up there. This causes the snipers to hesitate slightly. Use this opportunity to get as close as you can. If all else fails, you can go back and build up rage mode. You are invincible during this. Use this as a way to kill the snipers.