ranks in the NJROTC unit:
Cadet Enlisted Ranks

Grade: Rank: Abbreviation:
E-1 Seaman Recruit C/SR
E-2 Seaman Apprentice C/SA
E-3 Seaman C/SN
E-4 Petty Officer 3rd Class C/PO3
E-5 Petty Officer 2nd Class C/PO2
E-6 Petty Officer 1st Class C/PO1
E-7 Chief Petty Officer C/CPO
E-8 Senior Chief Petty Officer C/SCPO
E-9 Master Chief Petty Officer C/MCPO

Cadet Officer Ranks
Grade: Rank: Abbreviation:
O-1 Ensign C/Ens
O-2 Lieutenant (Junior Grade) C/Lt (J.G.)
O-3 Lieutenant C/Lt
O-4 Lieutenant Commander C/Lt. Cdr.
O-5 Commander C/Cdr.
O-6 Captain C/ Cpt.

C.O is ensighn right? i forgot