The Marine Corps has three types of commissioned officers: Warrant Officers, Limited Duty Officers, and Unrestricted Line Officers.
Below are the job descriptions for Marine Corps commissioned officers in Occupational Field 08 -- Field Artillery.
Warrant Officer Jobs:
0803 -- Targeting Effects Officer
0840 --Naval Surface Fire Support Planner
Limited Duty Officer Jobs:
0840 --Naval Surface Fire Support Planner
Unrestricted Line Officer Jobs:
0802 -- Field Artillery Officer
0840 --Naval Surface Fire Support Planner
