Dispatch II

Head to Merryweather HQ and stop at a significant distance of the entrance to the hangar. If the Merryweather soldiers detect you, they raise the alarm. It doesn’t lead to the mission failure but makes it more difficult. Therefore kill as many enemies as you can before entering the hangar using suppressed weapons. Enemies’ lines of sight are shown by cones on the radar. Stay clear of these and don’t make noise to avoid being spotted.

The doors are locked. To get inside, climb up the security booth and then climb over the fence.

Kill all the enemies, except those two that stand outside the hangar on the left of the entrance. Next, get one of the Mesas and park it near the office. Also, pay attention to a helicopter on the helipad near the water — it’s the easiest way to escape at the end of the mission.

Go to the Merryweather office and shot the target through the windows. It will cause an alarm, and new enemies will appear in the hangar.

Go down to the Mesa you previously prepared and drive to the helicopter shooting back the attackers.

Outside, you will be shelled by a Valkyrie helicopter — the same model as you need to use to escape. Shoot it down using onboard miniguns or any other weapons. After that fly away from the hangar and the mission will be completed.

P.S. The door in the east part of the hangar is locked during the mission and you can’t escape through it. We checked it out.

The mission accomplished on hard difficulty by two players. Thanks to Eugene for help.