The Ultimate Sacrifice
Complete the Arrival DLC ("Arrival" downloadable content)
11/15/2013
4:18:17 PM
Rare 10.3%
Brawler
Shoot and kill 20 enemies while they're knocked back by a punch
11/15/2013
3:59:51 PM
Rare 10.5%
Last Stand
Survive all five waves in the battle for Object Rho ("Arrival" downloadable content)
11/15/2013
3:56:29 PM
Very Rare 5.1%
Covert Action
Rescue Dr. Amanda Kenson without attracting hostile attention ("Arrival" downloadable content)
11/15/2013
3:32:58 PM
Ultra Rare 4.9%
Highly Trained
View all advanced combat training videos at Shepard's private terminal.
11/15/2013
3:21:02 PM
Rare 45.3%
Mission Accomplished
Save humanity throughout the galaxy from certain annihilation
11/15/2013
3:15:19 PM
Rare 45.3%
Insanity
Complete the game on the "Insanity" difficulty level without changing the setting
11/15/2013
3:15:02 PM
Ultra Rare 3.9%
Long Service Medal
Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1
11/15/2013
3:14:41 PM
Rare 31.0%
Tactician
Hit 20 different targets with multiple biotic powers to combine the effects
11/14/2013
10:13:14 PM
Very Rare 8.7%
Digital Exorcist
Successfully shut down the rogue VI in Project Overlord
11/14/2013
3:52:35 PM
Common 52.2%
Master at Arms
Kill enemies with 5 different heavy weapons during the game
11/14/2013
12:10:49 AM
Rare 28.1%