How many hours of total time do you have?

If I were you, I'd visit your local FBO and get a Flight Review and an Instrument Proficiency Check, then send out applications to the regionals.

Let them foot the bill for your CTP/ATP...and they will for someone with a military flying background.

There's lots of studying to do in order to get you reacquainted with the business, but nothing that you can't get with some ground time with a CFII and hitting the books for self-study.