You can rant about this all you want, the issue remains the same. 1C:Maddox Games is based in Russia so for them the russian laws apply. And said laws allow for
any potential interpretation so even the provision of a way to add a swastika to the in-game markings is a potentially dangerous thing for 1C. Which is why they did not make one.
Got an issue with that? Take it up with the Duma.