The guy is probably another prima donna with a book up his sleeve
And what's wrong with that?
This guy served his country, risked his life obeying orders coming from inept politicians for a lousy pay, and he has the guts to stand by his opinions.
He well deserves to make some money talking about what he knows best. And I bet he'll be better at it than the Ludlums, Crichtons or Browns of this world who haven't a clue of what they're writing about...
And yes, I've read all of Andy McNabs books and - with all their defects - I found (most of) them very interesting, entertaining and unputdownable...
He shouldn't have killed Kelly, though...