Penance

Penance could refer to many things in the Halo Universe. Did you mean:
*Penance - The multiplayer map included in the Anniversary map pack for Halo: Reach.
*Penance - A Covenant frigate which sent a taunting message to Reach during the Fall of Reach.
*Penance - A segment from the Halo 2: Original Soundtrack song, Delta Halo Suite.
*Solemn Penance - The Covenant ship featured in Halo 2, often referred to as Regret's carrier.
*Minister of Penance - A San'Shyuum who served the Covenant in some capacity during the Second Battle of Harvest, in 2531.
*Ministry of Penance - Part of the Covenant's legislative branch.