Affiliate Marketing Secrets

A lot of questions to answer but any help would be appreciated.
I just finished my Freshman year with a 3.5 GPA. I may not be the brightest student as I barely managed to get into college with a 2.4 GPA and attend a state school California State University Northridge. Anyways, I recently switched my major from Marketing to Accounting. Since I think I know what I want to do with my future would it be a smart choice to go ahead and Major in Accounting with a minor in Poly Sci in order to look into a future job with the FBI/CIA/NSA or some other intelligence gathering gov agency? I also struggled throughout high school with my math classes and I am going to have to retake my Business Calculus class because I received a C-, but a C or better is considered passing for Business majors at my school. Despite the setback I took accounting courses in high school and although they were easy I actually feel like I enjoyed doing Accounts Receivable/Payable, etc. I even enjoyed an AP Government class I took in High School.
I’m also looking to join the Army ROTC as it is the quickest way I can develop leadership skills that civilian jobs may not give me or take longer to develop. I am looking into some day possibly becoming an officer within Military Intelligence, Finance Corps, or Signal Corps. I seek to some day receive a top secret clearance.
Although I am still unsure I plan on continuing my education after serving 4 years in active duty while being a reserve to receive an MBA or Law School.
How would all this lead to a potential career in the FBI/CIA/NSA or some other intelligence gathering gov agency?