From Halopedia, the Halo wiki
Crewman Apprentice, abbreviated to CA, is an enlisted rank in the United Nations Space Command Naval Command (NAVCOM) rank structure; including the UNSC Navy and Office of Naval Intelligence. It is preceded by Crewman Recruit, and subordinate to a Crewman.
Crewman Apprentices are given an initial fleet assignment after they graduate boot camp and training school. A possible assignment a Crewman Apprentice can get is atmospheric reclamation maintenance duty.
|Name||Duration start||Duration end||Rank status||Notes|
|Preston Cole||Before September, 22 2489||After November, 27 2489||Joined the Academy at Mare Nubium becoming a Cadet.||Cole was still referred to as a Crewman Apprentice in JAG Incident Report (local) 475-A prior to graduation at the Academy at Mare Nubiem.|
- Halo: Official Spartan Field Manual - PART 8: UNSC ORGANISATION, NAVCOM Ranks, page 140-141
- Halo: Evolutions - The Impossible Life and the Possible Death of Preston J. Cole, section Section Two: Noncommissioned Years (2488-2489 CE)
- Halo: Evolutions - The Impossible Life and the Possible Death of Preston J. Cole, section Section Three: Luna Officer Candidate School (2489-2493 CE)