Fireteam Caliber

"A team of Spartan-IVs pulled from the best of the UNSC ranks. While perhaps not as effective as more inspirational teams, Caliber operates on a level near that of Spartan-IIs and IIIs."

- Assessment from Commander.

Fireteam Caliber is a Spartan Operations team made up of Spartan-IV operators culled from the ranks of various military branches. Created for the Requiem Campaign, the team lasted long after, engaging in multiple missions in the Joint-Occupaton Zone against Covenant remnants ranging from scouting to breakthrough ops. They continued in this manner until the began, seeing them stuck on the  as it narrowly escaped a Created Guardian.