I would keep it as well. I have a couple of listings in Oceanside and it is a grinder market up there. I am skeptical about the 475k-500k estimate for the sale of a 3/2 even if it is quite fixed up. If you are even breaking even on the cash flow then you are doing okay. My advice would be to keep it, save as much cash as you can so that when you come back you can use what you save for a dp on another property.
Thank you for serving our country. Guys like you are heroes in my book.
If you want more stats, post what part of Oceanside you are in and I will post the active/pending ratio, and other information that I am not so sure your property manager gave you.