Unless, y'know, you're counting becoming world champion at Traveller without ever previously playing a human, as some sort of accomplishment.

It certainly is interesting, especially given the weirdly extreme or suicidal tactics it used. I recently into this quote on Slate and was struck by the similarity:

40K may not be a true simulation of armed conflict, but it’s part of a centuries-long tradition of war games. After World War II, U.S. Navy Adm. Chester W. Nimitz credited gaming for helping the Allies prepare. “The war with Japan had been re-enacted in the game rooms here by so many people and in so many different ways,” he said, “that nothing that happened during the war was a surprise—absolutely nothing except the kamikaze tactics towards the end of the war; we had not visualized those.”