This guide will help you complete the mission [Total Stealth] The War Economy with an S Rank rating in Metal Gear Solid 5: The Phantom Pain, and includes a list of the mandatory and optional objectives available for this mission. Note that it is not necessary to complete all the objectives to earn an S Rank, but that you just need an accumulated score of 130,000 or more. Completing the mission quickly and earning additional score bonuses will greatly increase your chances of achieving an S Rank for the mission.
- Identify the arms dealer (Optional).
- Identify the CFA official (Optional).
- Eliminate the CFA official (Mandatory).
- Extract the CFA official (Optional).
- Extract the arms dealer (Optional).
- Listen to all conversations between the arms dealer and the CFA official (Optional).
- Secure the blueprint carried by the gunship (Optional).
- Extract the materials container inside the Nova Braga Airport hangar (Optional).
This is yet another repeat mission, only this time you must complete The War Economy mission in total stealth. Thus, our goal is to help you complete this mission without getting detected.
As with the previous stealth missions, you will want to equip your sneaking suit at the prep screen, and select a drop time of 1800 to deploy in the evening. You will also want to bring a suppressed weapon to quietly shoot the target.
You will likely recognize the location at the start of the mission, as several previous missions have begun in the same place. We will be infiltrating the target location in the same manner as before. Begin by riding your D-Horse to the back side of the airport, and hop over a gap in the barbed wire along the airport wall.
The CFA official is located in the building ahead of you on the second floor, as he was before. As you approach the building, make sure to shoot the security camera that is up in the corner above the guard standing at the entrance. It helps to use your iDROID to mark all nearby enemies so you can anticipate their movements.
Sneak up to the guard standing outside the main building, and take him down by slitting his throat. Enter the building, and make sure the soldier patrolling the top balcony above doesn’t spot you. Wait for the soldier to walk down the stairs, and take him down once he reaches the bottom. Slit his throat so he doesn’t wake up.
Now, sneak up the staircase and head to the left toward the target. Shoot him from behind while his back his turned, completing the main objective. Afterward, backtrack down the stairs and walk outside the way you entered. Make sure to take out the security camera, too.
Move across the road and begin to make your way toward the main entrance. Take cover behind the fence, and take out the two guards stationed at the watchtower just ahead of the gate. With the guards eliminated, call in your D-Horse and gallop out of the hot zone to complete the mission. You will score an S Rank for moving quickly and completing the objective with No Reflex, and No Enemy Combat Alerts.