Middle-earth: Shadow of War
72 Achievements
1,500
70-93.5h
Promise Keeper
Issue a Death Threat, and then successfully kill the target.
20
20.86%
How to unlock the Promise Keeper achievement in Middle-earth: Shadow of War - Definitive Guide
Video guide:
During Act 1, you will make your way to a new area and the first main mission here will be called Knife in the Dark. You will want to complete this mission and then you will automatically unlock the ability Death Threat. Now that you have this ability you will want to find a Worm which one of the green marked enemies on the map which you can interrogate for more information on other captains. Once you select the interrogate option, you can use the Death Threat option by selecting which will then allow you to select any captain you want to send it to.
Once the Death Threat has been sent, an exclusive mission will show up for that specific boss. Be warned however, as once you send the threat the captain will become stronger but will also drop better loot once killed. Kill him, and the achievement/trophy is yours.
Here is a video guide for this:
To unlock this achievement you need to issue a death threat to a captain and then follow through by killing them. First you will want to find a Wyrm, these are the Orcs that have a green symbol above their heads and you use to gain intel on the Captains. Once you have the intel on a Captain, find a Wyrm and dominate them then use them to send a death threat to the captain that you have discovered. Then hunt that Captain down either by starting any mission they are tied to or by finding them on the map and kill them to unlock this achievement.
You unlock the ability to dominate Orcs during the story so you won't be able to attempt this until you have unlocked it.