Your DSO needs to maybe take a continuing training course. Each degree level carrying a benefit of an OPT. Hence, no additional OPT on the same level. SInce you MBA is not a STEM course, you might easily forget about the GAP CAP benefit.
NYC EXPERIENCED IMMIGRATION ATTORNEYS www.myattorneyusa.com; email: firstname.lastname@example.org; Phone: (866) 456-8654; Fax: 212-964-0440; Cell: 212-202-0325. The information contained in this answer is provided for informational purposes only, and should not be construed as legal advice on any subject matter.
Do you have a specific employer in mind?
If so, then you need to meet with their immigration lawyer, not a non-attorney in HR.
If you don't already have an employer in mind and your DSO is confused ... pay a private attorney for a consultation.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.