He's Unstoppable!

He's Unstoppable! is an Achievement in Halo: Combat Evolved Anniversary and Halo: The Master Chief Collection. It is obtained by completing any campaign mission on Heroic or Legendary difficulty without taking any health damage.halo.xbox.com - Halo: Combat Evolved Anniversary Achievements
==Gallery==
HTMCC AchievementArt Hes-Unstoppable.jpeg|The Achievement art showcasing a screenshot of the ending cutscene for Cairo Station.
==Sources==
Category:Halo: Combat Evolved Anniversary Achievements
Category:Halo: The Master Chief Collection Achievements