Second lieutenant

Second Lieutenant is a junior commissioned officer rank of the UNSC Marine Corps. It is the lowest commissioned officer rank, and is equal in rank to Ensign in the UNSC Navy.

Second Lieutenant is typically the entry-level rank for most commissioned officers in the UNSC Marine Corps, typically in command of a platoon-size element (16 to 44 soldiers).

In informal settings, Second Lieutenants are referred to simply as "Lieutenant".