Final answer:
The OPNAV 1752/2 form should be submitted by the immediate superior in the grade of Commander or above when the alleged offender is the Commanding Officer.
Step-by-step explanation:
The OPNAV 1752/2 form must be submitted by the first officer in the Commander grade or above when the Commanding Officer (CO) is the alleged offender. The Immediate Superior in Charge (ISIC) needs to be of a sufficient seniority level to address issues involving an alleged offense by the CO, and in this context, a Commander is the minimum grade expected to undertake such responsibility. It's important to note that within military protocol, ensuring that the person addressing the issue is of appropriate rank is vital for maintaining the integrity of the investigation and abiding by the chain of command.