I was pointing out that the Brownshirts were a militia, but not a well-regulated militia. They were affiliated with the root cause of the problem, and were unlikely to ovethrow that cause.
The Heer was not a militia at all.
As far as I'm aware, there was no German militia until the Volksstrum was instituted towards the end of the war.
You were the one who brought up the example of post-WW1 Germany, I was merely indicating the flaws in your analogy.