This is a category of methods the UNSC has of identifying its ships, soldiers, and other equipment.
“A Service Number is a numerical designation given to each member of the UNSC military as a means...Service Number
“The Hull Classification Symbol is placed on each and every UNSC ship and space station...Hull classification symbol
“The concept of a "Call Sign" has existed for almost as long as there has been aviation, from the...Call sign
“The Career Service Vitae (or CSV for short) is a log kept on each soldier in the UNSC, similar...Career Service Vitae
“UNSCMID, presumably short for "UNSC Military Identification," is a numerical identification...UNSCMID