View source for UNSC rank structure/UNICOM

===Officer ranks===
<center>''All table information sourced from ''Halo: Official Spartan Field Manual'' pages 142-143, except where otherwise noted.''</center>
{| class="wikitable"
|style="background:#f1f1f1; font-weight:bold;"|Rank code
|OT
|WO-1
|WO-2
|O-1
|O-2
|O-3
|O-4
|O-5
|O-6
|O-7
|O-8
|O-9
|O-10
|-
|style="background:#f1f1f1; font-weight:bold;"|Rank
|[[Cadet]] ('''CDT''')
|[[Warrant Officer]] ('''WO''')
|[[Chief Warrant Officer]] ('''WO-2''')
|[[Second Lieutenant]] ('''2LT''')
|[[First Lieutenant]] ('''1LT''')
|[[Captain (UNICOM)|Captain]] ('''CPT''')
|[[Major (UNICOM)|Major]] ('''MAJ''')
|[[Lieutenant Colonel]] ('''LTCOL''')
|[[Colonel]] ('''COL''')
|[[Brigadier General]] ('''BGEN''')
|[[Major General]] ('''MGEN''')
|[[Lieutenant General]] ('''LTGEN''')
|[[General (UNICOM)|General]] ('''GEN''')
|-
|style="background:#f1f1f1; font-weight:bold;"|Typical responsibilities
|No command authority
|Crew chief or Army [[pilot]]
|Senior subject matter expert
|Platoon commander
|Company executive officer
|[[Company commander]]
|Battalion executive officer
|Battalion commander
|[[Brigade]] commander
|Division commander
|[[Task Force]] commander
|[[Central Command|CENTCOM]] commander
|[[UNSC High Command|HIGHCOM]] senior staff
|}