Mass Effect 3
Game
2,330
(1,550)

Mass Effect 3

4.6 from 5681 votes
 

61,301 tracked gamers have this game, 7,431 have completed it (12.12%) | 135 want to boost

There are a maximum of 68 Mass Effect 3 achievements (50 without DLC) worth 2,330 (1,550)

Achievement Details

Executioner Achievement in Mass Effect 3

Executioner28 (25)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modesMain Storyline - This achievement is gained automatically by progressing through the main game mode
Defeat an old adversary.

Achievement Guide for Executioner

AuthorSolution
Almighty Allah
148,341
Almighty Allah
Achievement won on 10 Mar 12
TA Score for this game: 1,067
Posted on 11 March 12 at 08:03, Edited on 11 March 12 at 21:44
This solution has 13 positive votes and 9 negative votes. Please log in to vote.
Spoilers!

This achievement is for defeating Kai Leng after you attack Cerberus headquarters. It is part of the main quest so you cannot miss it because you need to go there in order to get a certain item. Once you enter the illusive mans room Kai Leng will appear and you just need to beat him in order to get the achievement.
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Slynkycat
45,301
Slynkycat
Achievement won offline
TA Score for this game: 970
Posted on 12 March 12 at 21:58
 This solution has 8 positive votes and 5 negative votes. Please log in to vote.
He is a bit of a pain to kill, but take lots of biotics with you to hammer away at his shields. I brought Garrus and EDI, and just kept smacking him with overload etc to get rid of the shield. Once it eventually goes just shoot the hell out of him til he drops. you will have more challenge keeping out of the way of the countless other cerberus enemies. You need to be quick though as his shields regen.
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