From Halopedia, the Halo wiki
Regret may refer to the following:
- Regret (achievement) - An achievement in Halo 2 Vista and Halo: The Master Chief Collection.
- Regret (level) - The ninth campaign level in Halo 2 which requires the player to kill the Prophet of Regret.
- Regret (Halo 5: Guardians level) - The Halo 5: Guardians multiplayer map based on a Covenant ship that crashed on a Halo ring.
- Regret (music) - A soundtrack from the Halo: Spartan Assault Original Soundtrack.
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