On the "Eye of the Storm" level get to the part where you blow up the trucks with the dynamite. Then turn on invincibility. Once you have blown up the first three trucks and gotten the document from the guy at the desk go to the last truck. Leave some of the bad guys around since you have invincibility on. Set the dynamite on the truck and run around to the other side. When on the other side of the truck look up and align yourself so that your right under the bridge-like thing. If you do this right the explosion from the truck will launch you up onto the roof nearby. Then you can snipe the the bad guys you left standing around.