Bearnekkid:
Pretty much as Cameron says. For a while the Blackwater Academy was doing training in things like bodyguarding and security/maritime contracting. But I honestly don't know how many people got actual jobs after taking all the requisite courses.
And there are always security companies out there who hire warm bodies... and worry about their skill sets later. Or not at all. (Google Gecko45 Mall Ninja sometime for a laugh...)
Fact is that after 15 years of conflict in the Sandbox (and elsewhere), and with many police departments and federal LE officers receiving levels of training unheard-of a few decades ago, there are tens of thousands of tier-one types who have been selected, trained, background checked, vetted and proven in the field... and they have the best training that your tax dollars can buy ranging from weapons and engagement skills to language training and, in many cases, L.E. certifications. So with all that talent floating out there and competing for a limited (and currently shrinking) number of contracting jobs... why would security companies (or shipping companies) take the risk with unproven folks, no matter how talented.
Never say never. But my guess is that your competition will be stiff.
Cheers,
Sirhr