Doesn't matter how many sorties, he never did it or you'd have at least similar records in the DAF showing big losses. Johnnie Johnson was so suspicious of his claims that he went and researched it personally just after the war and being a Group Captain had access to the RAF records. His conclusion was that Marseille and his wingman, who frequently went out alone, made a lot of them up.
Let's face it, it got him promotion, trips out of the war and into Berlin for as many fraulines as he could handle
Why wouldn't he?
But I am open to correction on this interesting topic, another thread?