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UNSCMID, presumably short for "UNSC Military Identification," is a numerical identification assigned to all members of the UNSC armed forces. Very similar, but apparently not equivalent, to the Service Number, the UNSCMID consists of seven, eight, or nine digits and is unique for every serviceman.[note 1]

Known UNSCMIDsEdit


  1. It is unclear why UNSCMIDs are used sometimes while Service Numbers are used the majority of the time, however both identifications are used in Halo: Ghosts of Onyx, confirming that they are either two separate systems or a minor error on the part of the author.


  1. 1.0 1.1 1.2 1.3 1.4 Halo: Ghosts of Onyx, pages 122-125

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