As a fellow vet, I'd love to help you out. As has been said, there's not much here in Huntington Beach (one duplex at $489,000 that's not in an area I would recommend) but there are a few possibilities in surrounding communities. How familiar are you with North Orange County? There is a tri-plex in Costa Mesa East of Newport Blvd. between 19th and 17th that might fit your needs.
Let's talk and see where we can take this.