Seeking a commission?

[craigiep]

In Army terms, what does the expression 'seeking a commission' mean?

[BriWrite]

Wishing to be a commisioned officer, Commissioned officers are typically the only persons in a military environment able to exercise command (according to the most technical definition of the word) over a military unit.

Non-commissioned officers (NCOs) in positions of authority can be said to have control or charge rather than command per se, although the use of the word "command" to describe any use of authority is widespread and often official.

[Bellringer]

Non commissioned Officers are from Lance Corporal to Staff Sergeant, then come Warrant Officers who hold the Queens Warrant, WO class 2 & Class 1. A commissioned Officer holds a Queens Commission. They are the ranks usually thought of as "Officers".
So, if you are seeking a commission, you are looking for promotion to 'Officer' rank.