Apparently Wagner has succeeded in Rostov, captured the police hq. and left in convoy on the Moscow road. Fighting has been reported at Voronezh which is half way on the 600 miles between Rostov and Moscow. Prigozhin has told people to stay off the highway and they will be left alone. He said anything flying overhead will be shot and apparently 1 helicopter has been put down. Shoigu has fled Rostov, Putin is headed for his secure mansion in Sochi, Lukachenco and family are headed for or are in Turkey, and Sochi is near Turkey. Here is a political map of Russia with important towns listed, also highways, and a distance chart.
https://www.nationsonline.org/oneworld/map/russia-political-map.htm
So 300,000 Russian troops are in Ukraine? I assume the remaining troops in Moscow and St. Petersburg are conscripts and police.
3 helicopters put down per Russian sources (not Prigozhen), including videos of more than one crash.