Fire Team QUIVER is a SPARTAN III Category-II Fire Team. Comprised of SPARTAN III Candidates who's genetic makeup matched the prerequisites to Doctor Catherine Elizabeth Halsey's SPARTAN II Program. Because of this QUIVER was taken away from the rest of their SPARTAN III brethren and placed in this Fire Team to be more useful to the UNSC. Beginning years of the Fire Team had them preforming raids, Scuttle missions per Cole Protocol, and demolition operations. By 2540 however they were reassigned to assist more larger campaigns for the UNSC.