After the Mainstorymission "Queen of the Shore" the
Brand ability unlocks. The Mission comes almost at the End of the Game. For the Achievement / Trophy you need also the
Combat Drain Ability. Pick a Captain (it does not matter who) go to him and start fighting.
Fight now carefully against the Captain, he must not die. Our Target is the green Skull Symbol over this Head. Is the Skull green, use the Combat drain Ability
+
on every Hit Streak. You will need several attempts but not forgotten, fight carefully! (he must not die)
/e
xDartz xNVx write in the Comments you dont need the Combat Drain Ability!
*** Spoiler - click to reveal ***You don't need to use combat drain for this one. I got it by just using the "Hold B button" ability about 6-8 times until it finally worked. The key is just to keep trying to drain/brand him without killing him.