This is the final mission for Yogi and Reggie, with you beginning by falling from the sky and into a pool of water. Swim to land and go towards the marker, where you’ll have to find a way onto the roof. If you go around back, you’ll find a shotgun, as well as a ways to climb onto the roof. Go into the room up here and the scenery will change.
Use the grapple point to get back to the ground, then kill the two enemies near the next marker. Keep going until you appear on some floating rocks, then carefully make your way down the stairs and down the sliding ramp, where you’ll freefall to the ground below. When you land, find a way to get to the next marker, which is on the roof.
There, a gyrocopter will appear, so get on it and start flying towards the next objective. Similar to the jet ski sequence in the previous mission, giant boulders will appear in the air while you’re flying, so do your best to avoid them. When you finally get to your destination, go through the door to finish the mission.
Note: The Golden Pipe you receive at the end of the mission is an item you can find at your home. When used, it will send you to a random place in Kyrat, seemingly to those that you have not yet discovered.