In a nutshell, their overall missions are different. The contemporary terrorist's mission is religious, and the early Russian revolutionary's mission was political.
For example, when Tsar Alexander II was assassinated, the goal was governmental reform, not to send a religious message to the West. Early Russian revolutionaries attempted to topple the government to create better conditions for the Russian peasants and working class, and modern terrorists are on a mission to topple the infidel West.
Bolsheviks.
The Russian socialist revolutionaries under Lenin were known as Bolsheviks until March 1918 when they adopted the name Communists at their Seventh Party Congress. Note: The 'Bolsheviks' as a faction of the Russian Social Democratic Party are not to be confused with another socialist party named 'Socialist Revolutionaries.' This question specifically uses the term "socialist revolutionaries," but it obviously does not mean the political party that was then known as the "Socialist Revolutionaries," because the "Socialist Revolutionaries" were abolished by the Communists.
The Bolsheviks under Vladimir Lenin were the Russian revolutionaries that took control of the government in 1917. In March 1918, they changed their name to Communists.The Bolsheviks, later calling themselves Communists, were the Russian revolutionaries who took control of Russia in 1917.
communists
yes
Soviets
They were called communists.
Ocelot made a deal with the Russian military, and they were sending the Terrorists supplies.
Alexander Nevski
Lenin
Lenin
Bolshaviks There were several revolutionary parties: the Russian Social Democratic Labor Party, which was split into Menshevik and Bolshevik sides. In addition there were the Social Revolutionaries. This was a large revolutionary party, which used terrorism and violence to achieve its aims.