Do you need a transit visa for transiting through Russia to Minsk with China Eastern Airlines?

“Take a flight with Dong Heng to Minsk, Russia via Moscow, need to purchase an open-jaw ticket, luggage delivery to destination, and no visa required for transit in Russia.”
Take a Shanghai Airlines plane to Russia and transfer in Moscow, you need to purchase an onward flight ticket, send your luggage to the destination, no visa required for transit in Russia.