He's also a compulsive liar, attention-seeker and conspiracy nut (you can kind of tell already because "Suvorov never misses a chance to point out that most of them are (paid by) Soviet political/military figures"). Half the facts in that book are rumors he overheard from colleagues or things he made up based on seeing something he didn't understand (the "backwards-print shoe" is pretty hilarious, for example). Try tracking down any of the sources he bothers to cite and see how he misinterprets them.