Sequence the steps Communists took to turn Russia into a centralized state dominated by a single party. if you could organize them in numeric...

It sounds like you are doing an essay. This should be fun. 

1.  Created a revolution.

2.  The leadership formed with Lenin leading the group.

3.  The Bolsheviks kicked out the Mensheviks and disallowed them part in the party.  The Mensheviks were the more moderate of the two groups in the COmmunist party. 

4.  Lenin had a cult-like following.  Some scholars feel that this allowed him more power.

5.  At the death of Lenin, Stalin started purges that brought the Communist party in fear of him and brought more unity because of the fear of the party and Stalin's purges.