@Chris L. is spot on; you need to develop a business plan that will serve as an SOP for your new AOR as an investor! While all of the strategies you mentioned will provide you with your desired outcome, you have to understand what your activity produces. Good planning helps you narrow your focus and get to your outcomes with greater success.
I find that military markets remain only as strong as our military, and the number of active duty members at most installations are in decline. This may be a point of consideration in areas where you're depending on the military community for rental income. You may find a resource like http://www.militarybyowner.com to be a good one. Call the REIA leaders for help on the market. They're usually more than happy to help you.
As for entry into the industry, if my first step was to acquire a fix and flip as a primary residence, I'd buy a duplex. Upgrade one side while living in the other to lower your risk exposure. Let's say you left after a year. Banks would consider you a landlord and count that tenant as income. In leaving, you would add another income-producing tenant and move into phase two.
Finally, I think anyone who is new to RE investing needs to understand how to 1) successfully bid and contract for property, 2) create terms for sellers and 3) promise only what you can control. I don't care how ambitious you are; your ability to contract and close deals will separate you from 85% of investors. This only comes by experience, and learning the wholesaling process is the best way to learn what seasoned investors already know... that we make our money when we BUY; we only make our money back when we sell. While you're flipping, learn as much as you can from networking with PEOPLE, walking their properties and understanding how the operate. Don't buy the guru hype unless you can afford it :) Most of us are proud of what we've been able to accomplish and love to share, especially since we learned from others! I would think your best current assets are those in your backyard.
@Andrew Martel Thank you for serving our country!!! All the best as you retire and embark on this new adventure.