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Joint Task Force Sierra was UNSC unit.[1] It is likely a joint unit between the UNSC and Swords of Sanghelios.

Service HistoryEdit

A BR85N Service Rifle featuring a Covenant Carbine scope used by JTF Sierra, was up for review by the UNSC Ordnance Commission by 2558.[1]


  1. 1.0 1.1 Halo 5: Guardians - Description: Hybrid BR