Notes:

All officers with two-word ranks are referred to by the highest one in the title. Out of respect Brigadier Generals are referred to as General, Lieutenant Commanders are called Commander, etc.

Abbreviations are written all caps without periods and precede one's name. Example: MAJ Death Nick.

Superior officers may be referred to by title or "Sir." Subordinate officers may be referred to by title or "Mr." or "Miss".

Officers who have attained the rank of LTCOL or CDR are considered Senior Officers. Officers who are CAPT/LT or below are considered Junior officers.

Only Senior Officers can become Commanding Officers. Other officers who are ordered to command a unit are designated OIC (Officer In Charge).

The officer you report to is called your direct superior. This may or may not be your Commanding Officer (CO). A CO is an officer in charge of a command. There are other officers in the command that are in charge of different things, but only one CO. Every command has a CO and an XO (Executive Officer). The XO is the CO's assistant and is second in command.