LightSpectra
me autem minui
Again, I don't disagree, I'm just suggesting that there are nuances to this that Maimonides failed to acknowledge. Everything that you say, after all, is fundamentally true of any German soldier at that time; Guderian is distinguished only by the individual resistance which he may have potentially brought to bear, not the basic choice of whether or not to do so. He have been complicit in the crimes of the Third Reich, but he was not, as Maimonides appears to believe, responsible for them.
Individual German soldiers may not have been aware of the Holocaust or false pretenses for Hitler's wars of conquest; even so, I don't excuse them for anything, because there were civilians and low-ranking soldiers like Sophie Scroll and Joseph Ratzinger that were well aware of the moral errors of their government. It's a flimsy excuse, and it certainly doesn't hold any weight when we're talking about the people that individually planned unjustifiable wars of conquest like Manstein and Guderian.
Put simply, there would have been no Holocaust or World War II without (a) politicians like Hitler that ordered their underlings to do wicked things, and (b) soldiers or administrators like Guderian to execute them. They're both responsible in my eyes, though not equally.