Deus Ex: Human Revolution - Barrett Boss Battle (Highest Difficulty)
This is the first boss battle in Deus Ex: Human Revolution with Lawrence Barrett. Winning this battle grants “The Bull” achievement.
I am playing on the highest difficulty setting, “Give Me Deus Ex”, and I am, up to this point, speced for hacking and stealth.
After several failed attempts, I won the battle using an EMP grenade, followed by several frag grenades, and several rounds from the combat rifle.
This is by no means the only way to win this battle. I have seen others hurl gas cans and red barrels at Barrett in an attempt to defeat him. Although this technique did not work for me, it is certainly an option if you do not have the necessary equipment when entering this battle.