I have been reading the first 3 books (currently reading no4) of Andy McNabs books about Nick Stone.
Nick seems, at least so far, to always have a Leatherman on him. He is not specific about model, but since theese books take place in the late 90's, early 2000's and he has to open it to get to the knife, Im guessing its a PST or a PST 2.
He even mentions Jim Leatherman in book 4, and makes a comment about bad cheapo multis "that break the first time you use it" in book 3.
He uses his Leatherman quite a lot too.
Great books. I have no Idea why I havent started to read them earlier.