| Lieutenant Colonel | |
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| File:LieutenantColonel.jpg MACO Lieutenant Colonel | |
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MACO Lieutenant Colonel Rank Insignia |
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The MACO line rank immediately inferior to Colonel, and superior to Major. In comparison to Starfleet's ranking system, a Lieutenant Colonel is equivalent to Commander.
Lieutenant Colonels typically command battalion-sized units (300 to 1,000 Soldiers), with a Master Sergeant as principal NCO assistant. Colonels may also be selected for brigade and task force Executive Officer.