REWARDS - Respect
Go to the airport. You'll need a parachute to get onto the dam quay. Get in the plane at the end of the runway and take off, then head west to the yellow blip. You'll need to get some serious altitude for this mission, so continue climbing until the blip becomes level (meaning Square, not arrow up or down). When you fly through the red circle, press Triangle to jump out of the plane. Freefall for a bit, then pull the cord and parachute over to the yellow blip. You can land on or near the red marker.
Once you land, head towards the end of the dam quay. Pick up the knife. You must stay quiet and use stealth for this mission. Stealth kill the first two guards on your radar and head inside. When you get close to each generator, press Triangle to plant each charge. Plant all 5 charges and walk into the red marker at the end of the room to escape the dam. Mission complete and respect gained.