Vicky2\localisation\newtext.csv, line 98:
The names change with the form of government. That's also the reason why each country has multiple flags.Code:RUS_proletarian_dictatorship Soviet Union Union Soviétique Sowjetunion Unión Soviética x
A communist GB for example is called "The Workers Commonwealth". No events or modifiers are involved to make a communist uprising in russia more likely.