My question to the Professor

I am a bit confused Professor Henkle on the ideaology of Marxism. It seems like Marx deals a lot with the idea of societies and class systems, but what exctly is his message? He seems to be against the bourgeousie who runs the order of things in the state, and speaks about the proletariats which should uprise aginst them, but then the idea of his whole philosophy is communism which is a unified state (although we all know what that became in the Soviet Union), with no individuality at all...help! I'm definitely confused. Does he want class within the unified state? Because he says something about speaking to people only about productive forces in the same material group...? I'm not sure...