What did the communists do first when they took control of the soviet union?

They didn't take over the soviet union, they created it from the downfall of Russia which was ruled by the czars(kings) at the time. It started off as soviet Russia but upon expanding into other states it became the soviet union. The first thing the communists did was kill of the bourgeois (rich upper class) as it was a "revolution for the working class".

What the question i don't get it do u mean what she needs to do to auctually become one