Sentinels achievement in Halo 5: Guardians


Complete Mission 15.

1 guideOnline/Offline - These achievements can be obtained in either an online or offline game mode.Single Player - These achievements can be obtained by a single player.Cooperative - These achievements can be obtained by two or more players in a cooperative game mode who have met the achievement requirements.Main Storyline - These achievements are gained automatically by progressing through the main game modes.

How to unlock the Sentinels achievement

  • Small VictoriesSmall Victories737,594
    27 Oct 2015 12 Nov 2018
    5 5 0
    Main story related - Gained after finishing mission 15 on any difficulty in main campaign
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