Online MBA at T20 for Current Military Officer

I am just starting my 2nd year as an Air Force officer and have two years left before I transition out. I am determined to make the switch to investment banking and I realize I need an MBA from a top school in order to do this. I was thinking of going the brick and mortar route; however, I'll be 30 years old in two years and I'll be giving up a lot by going to school full time. I recently just found out that Marshall and Kenan-Flagler both have online MBA programs that start this fall.

Now, I was thinking if I entered one of these programs, I would graduate just before transitioning out of the Air Force and I could try to network my way into an associate position at an IB.

A little bit of background on me: BA with Honors/Phi Beta Kappa/Magna Cum Laude in Political Science from the University of Delaware (3.89 GPA). MA in Public Policy from the same school. MS in Public Policy from Troy University. Also will have four years of overseas leadership experience under my belt when I get out.

What do you all think? Should I get a jump on this now and use my GI Bill to pay for this so I can go straight to work in two years? Also, would you choose UNC or USC?Or, should I try to go to a brick and mortar in two years and be a full-time student? I'm leaning heavily towards the online route.