Middle-earth: Shadow of Mordor - Game of the Year Edition

*** This can ONLY be done in the additional content (formerly DLC); The Bright Lord or Trials of War - it cannot be won in the story mode of the base game. ***
(Thank you to SubtleEel4 and RandomAlec for adding this information in the comments below.)

Stealth Brand is a move that can be achieved by HOLDING to sneak and then PRESSING when close to your target provided that you are hidden (not in combat).

Normally, captains must have GREEN HEALTH before they can be branded. So you will need to attack the captain to reduce his health to this level first. You will then need to break the line of sight from the captain and any other enemies so that you can engage in stealth attacks.

When you attempt to Stealth Brand, the captains do counter very often so it may take a number of attempts. The simplest way around this is to activate the power of the ring ( + ) as this makes you invisible for a limited time; you can then try constantly to Stealth Brand.

UPDATE - If a captain is vulnerable to stealth finishers you can stealth brand without having to lower his health at all (thanks steven727 and SubtleEel4 for pointing this out in the comments).

From Shadow to Shadow - Stealth Brand a Captain.
Difficulty : Easy
Length: Very Short

Here is an easy way to do it, however, it requires a little bit of luck regarding how a captain is generated.

If you find a captain which is Vulnerable to Stealth finishers, you can simply Stealth Brand him from behind when undetected, or from above by holding and pressing . When you do this, it's an instant Brand, and an achievement.

I repeat, we are looking for a vulnerability, written in light blue, not a weakness.

Hello all achievement hunters, I will keep this short and sweet.

This achievement is best earned in the trials of war, more specifically the "test of wisdom"

The test of wisdom will already have all uruk intel obtained. Upon starting go to the "saurons army" screen. Press the Y button to see the strength and weakness of the captains. You are looking for the "vulnerable to stealth finishers"

Once you find one track him down and stealth brand him. If you are unlucky enough not to get any captains with that weakness just restart the test of wisdom.

Hope this helps, happy achievement hunting!

There’s a very easy place to obtain this achievement during The Bright Lord campaign. During the mission Press the Advantage (furthest right Forge Tower mission), the captain you’re required to defeat has a weakness to stealth. Once he shows up, just stealth brand him and the achievement will pop.