Is Russia the kind of country that would kill you or members of your family if you were in uniform and didn't follow orders? I honestly don't know. I do think individual responsibility absolutely has a place for acts in war, but I'd want that informed by that what choices those individuals had available and what they'd have understood the consequences of their choices would be.
Of course they are, they've done it the whole war.
Most of the time executing civilian men as per our gender's supposed "main purpose" in life.
But they have also executed women and children indiscriminately as well. There are recorded radio conversations of Russian soldiers explaining their orders as "kill everyone, I don't care who they are".