Instructions
Begin an operation, or op. Locate an enemy and perform a holdup with your Mk. 22 by pointing your weapon at their back and moving forward until the barrel touches. Shoot them with the Mk. 22 Tranquilizer. Alternatively, you can perform a grapple and knock the enemy out.
Open the equipment menu. Select the Fulton Recovery System. Use the Fulton Recovery System on the subdued enemy. Repeat this as often as you wish and finish your mission.
Return to the Mother Base. Open the Mother Base menu and go the staff lobby, and select the unassigned staff. Examine the dossier for their medical rating, and choose the soldiers with the highest medical rating and assign them to the medical team. They will now automatically heal your other teams of injuries and diseases.