Operation Chastity was a planned fan-feature film set in the Halo universe, centering on a platoon of Recon Marines of the 267th Marine Regiment. They operate in Argentina within a UNSC cordon, set up around the wreckage of the CCS-class battlecruiser "Chaste Ascendancy" following its crash-landing on Earth. Operation Chastity is their last mission in a forgotten part of the Human-Covenant war. Operation Chastity is a completely independent work, unaffiliated with 343 Industries, Bungie, or any other official party. It has been delayed indefinitely.