A Final Penance | Side quests - Longinus Far Cry 4 Guide
Last update: 11 May 2016
The fourth and the last mission given by Longinus (it is good to take a sniper rifle with you). It is similar to the previous tasks.
Head to the place shown on the map and wait for the Smuggler. He will be driving down the road from your position. The Smuggler will stop for a while and then start driving again. Follow him but keep your distance.
Outside the vault, you will encounter only few enemies. Watch out for the armored soldier and his machine gun. If you have a sniper rifle, you can quickly clear the area. Inside, watch out for a soldier located right next to the entrance (there are three enemies inside). Take the diamond and head towards the exit.
Watch out in the narrow passage, as there are a lot of enemies incoming. You may have some troubles with the snipers. You can take the risk and quickly run outside. Get into the car and if you're lucky, you will safely drive away. To eliminate the risk and make sure that you complete the mission, first eliminate the snipers (a sniper rifle will be of use). You will find them opposite the entrance, between the trees. It will be much easier for you to escape after you kill them. If you cannot escape, you have to eliminate all of the enemies or at least most of them. Don't let the soldier with the flamethrower catch you and watch out for the grenades.
After you get out of the blue zone, take the diamond to the point shown on the map. As a reward for completing Longinus missions, you will receive a very good rocket launcher - LK-1018.