GMAT: 750
Undergrad GPA: 3.15 in electrical engineering from Top 10 school
Master's GPA: 4.0 in electrical engineering from UCLA
Current Occupation: military officer (including a deployment to Afghanistan)- consistently ranked #1 or #2 officer throughout my career.
Applying to: Harvard, Stanford, Wharton, Northwestern, Haas, and UCLA

Extracurriculars:
Post Grad:
1) Fundraising and Community Service Chair for a 600 member junior officer organization.
2) Garnered a community service award and title of Top Junior Officer Council in the Western U.S. for my organization.
3) Also, over the last four years, I've directly raised $25,000 to support military members, families, retirees, and charities in financial aid.
4) I volunteered for two weeks at an orphanage and an HIV/AIDS outreach center in India.
5) I'm also been an alumni interviewer for undergrad admissions for my school for several years.

During College: Heavily involved in ROTC (10-15 hours per week). Ultimately, served as Cadet Commander of my ROTC detachment. Responsible for training junior cadets to become military officers. Also, very involved (~10 hour per week) with a student-run company. Served on the executive board as the Assistant CFO and then the CFO. Company had annual sales of around $1M.

Career Goal: Couple my experience managing defense/aerospace programs and my engineering background to pursue a PM role in high technology at a company such as Google, Apple, etc in the Bay Area.

Primary Concerns:
Low GPA- My undergrad GPA isn't that great. Since then, I have gotten my master's in engineering with a 4.0 GPA. Also, I've built an alternate transcript of 2 accounting classes and an econ class (All A's). Do I need to explain my low GPA in the optional essay?