No One Left Behind

No One Left Behind is an achievement in Halo 4Halo Waypoint - The Halo Bulletin: 08.22.12 and Halo: The Master Chief Collection. It is obtained by saving at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
==Gallery==
HTMCC AchievementArt NoOneLeftBehind.png|The Achievement art
==Sources==
Category:Halo 4 Achievements
Category:Halo: The Master Chief Collection Achievements