|Affiliation:||Colonial Marine Corps|
|Higher Rank:||Marine Captain|
|Lower Rank:||Second Lieutenant|
First Lieutenant is a junior Colonial Marine Corps officer rank, above Second Lieutenant and below Marine Captain. First Lieutenants generally serve as platoon commanders, as second in command of a company, or as adjutants to senior officers.
|Colonial Marines Officer Ranks|
|Officer Cadet||Ensign||Second Lieutenant||First Lieutenant||Captain||Major||Lieutenant Colonel||Colonel||Major General||Lieutenant General||General|
|For the Colonial Marines Enlisted rank structure click here|
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