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

Stinking Rebels - Brand 5 Bodyguards of a Warchief, turning them against him in combat.
Difficulty - Medium
Length - Medium

Pre-requisite:
You need to unlock the Brand and Command abilities. These are unlocked later on, in the 2nd map.

In Sauron's army, when you highlight a Warchief, you can see how many and which captains are his bodyguards by looking at the lines from the Warchief to the Captains. It will be faster to pick the Warchief with the most bodyguards.

Preparation:
You will probably combine these 2 tactics to turn a bodyguard against his Warchief.
1- Turn an existing bodyguard against him
2- Make any other Captain a bodyguard

1- To turn an existing bodyguard against him, find the Captain free-roaming or in a Power Struggle. You need to Dominate him and press to Command him. Select his Warchief to Betray him.

2- Find any Captain you want and fight him to eventually Dominate him. Again, press to Command him. Select the Warchief to Infiltrate. Once you do this, a blue Power Struggle icon will appear for this Captain. You need to go to it and help him succeed. When he succeeds, he becomes a Branded bodyguard. Since this is longer, this is why I recommend to pick the Warchief with the most bodyguards before starting this.

Note: You can Brand a Captain first, then you can easily grab him and Dominate him without problems.
Note2: Many ways to Brand a Captain, if Vulnerable to Stealth Finishers, you can Brand him without any actual fights + from behind or from Above. If Vulnerable to Combat Finishers, you can brand him in combat when you reach x5 (or x8 without the Upgrade) by pressing +. If none of these, you need to fight him until the skull is green.

Execution:
Once the Warchief has 5 Branded bodyguards, you need to find his mission on the map and do whatever objective needed to lure him out. When he comes out, you should see him followed by your 5 Branded bodyguards, with a blue skull. Now, press to activate them.
Achievement unlocked.