Perhaps this is the solution?(And I know fully well that Hitler's successes of that time were short lived mirages, but I think in spring 1936, not many would have seen it that way).
For a communist path, instead of an immediate civil war like the others, you can begin an event string that allows you to subtly undermine Hitler, showing just how paper thin all his promises are, and start the communist Civil War in 37 or 38?