When setting up the sniper rifle in Vienna, high mountains are shown in the background. There are no mountains that close to Vienna.
When entering the subway station at 37:57, the name of the station is shown to be Pankrac. In fact, the station is Mustek. The subway sign shows the station to be on lines B and F. B is correct, but there is no line F in Prague. (Pankrac is on line C.)