Theres one in that CoD mission, you can see it in that vid. I'm unsure if one existed at the time of the invasion, there were probably more Statues of Stalin (given that is
was called STALINgrad)
Heres one taken outside the "Tsarytsin" museum before the war, quite obviously a Stalin statue -
The fountain would be a nice addition, although maybe a little harder to model... would take a lot of work in poser.