MBA fit ?

Hi,

I'm thinking of an MBA in two years. I've just graduated from a semi-target with a low GPA (3.1). I did get some offers but none at top HFs (mostly because they don't hire from undergrad right away).

I recently decided that I don't want to start working right away and want to go the U.S army route. I was thinking of doing it for two years. I'm either going to be an infantry officer or intelligence officer (I find out soon which one). 

I have also written the GMAT and got a 780 (it's valid for five years). My question is: Given my GMAT score, GPA, and career plans for the next two years, would I be a competitive candidate for M7 ? My top choice would be Wharton in a perfect world because I would like to break into a top SM after graduation and my friends have said Wharton does really well in HF.

I just want to make sure that my expectations are in line with reality. If M7 is out of reach after 2 years, can I do anything to improve my application? Do I need more time in the army to be competitive (as in 2 years is not enough experience?). Do I leave the army after two years and then try to break into a vet IB program and then apply?

All advice is welcome.

Thank you.