You may be able to find something. I just found a 3 bedroom townhouse in Mililani for a military family.
You have to qualify for a loan though. In the good 'ole days you could transfer loans, but not any more. You may be able to find a military seller though and work something out with their existing VA loan.
Since your BAH is nontaxable, it's a good move. The interest you pay is deductible from your basic pay and other taxable allowances. BAH rates:
Let me know if you have any further questions. I am retired military (22 years). You can also get home listings sent to you automatically by email, just to see what's out there:
I head up a real etate investment company and may be able to assist you in purchasing one of our properties or any other on the market. Mililani is a great community. I live in town now, but I grew up there. You will enjoy it. Please let me know if I can help out you in anyway.