|I Admire its Purity||15|
|Complete Alien Campaign on Hard difficulty setting|
Beat all missions on Hard. This unlocks after the final cutscene once you are back in the main menu.
|Rate this achievement||Average Rating|
|You need to register before being able to post comments.|
|You need to log in or register to use My360Achievements.|
|You need to log in or register to rate games.|
User Score is based on 858 user ratings.