High Price | Side quests - Longinus Far Cry 4 Guide
Last update: 11 May 2016
This mission is identical to the previous ones. Head to the place shown on the map and wait for the Smuggler. He will be driving in a car, below your position. Using the buzzer, you will have no trouble following him without being noticed. Just remember not to go too low.
Near the vault, there is a sniper and an armored soldier, so it may be difficult to win in an open fight. Instead of that, walk around the blue zone from the left. Climb the rocks and eliminate the sniper (it is best to do it from some distance). From here, you will have a clear shot at anyone. A good idea is to use a grenade launcher and eliminate the armored soldier first. The rest of the enemies shouldn't cause you much trouble. After killing all of them, search the Smuggler's body and enter the vault.
When inside, be careful as there are a lot of enemies there. Sneak near the left wall and approach the two soldiers facing their back at you. There, on a stool, you will find a diamond. If you're noticed, deal with the enemies before going outside. A shotgun will be of use in the small rooms.
As always, you will encounter some enemies when leaving. Using the cover, you can try to eliminate them (watch out for the armored soldier with LMG), but it will be easier for you if you sprint out of the door and quickly head right. You will find a quad there. Deliver the diamonds and you will complete the mission.