alright, he are the three phases that it takes to begin a career as a Marine Officer. you have to undergo Officer Candidate School (PLC, OCC, PLC JR+SR, ROTC, or Academy). then after you complete this part you have to complete TBS (The Basic School) a six month school for officers. Next you undergo your MOS training. for pilots you would go to flight school which takes anywhere from 1.5 to 2 years. that is it in a nutshell. you can visit the OCS website or TBS website if you go to my profile.