- Reference
Rank and insignia: enlisted, warrant officer, and commissioned
Every Army grade with its title, abbreviation, and insignia, including the two E-4 grades and the two E-8 and E-9 positions that share a pay grade.
- Reference
Wearing the Army Combat Uniform in OCP
The complete OCP uniform, where the flag and the patches go, what commanders may and may not authorize, and the wear rules Soldiers get corrected on most often.