Big compliment for those who dug him out of obskurity.
In Germany he is almost unknown, so he worked out the Tannenberg battle as a Generalsstaboffizier. Here all merits for that go to Hindenburg/Ludendorff.
Barbara Tuchman valued him high in her book " Guns of August ".
If you took him as a very good officer ingame, why not von Francois.
He denied Ludendorff an attack at that battle, saying not before the heavy arty is prepared. As its was finally it alone killed the Russian attack.
And out of style reasons the general who had the good old German name
William Alfred Hendry Campbell of Breadalbane would have been nice too.