It is important to note that a retrovirus must "bring" its own reverse transcriptase in its capsid, otherwise it is unable to utilize the enzymes of the infected cell to carry out the task, due to the unusual nature of producing DNA from RNA.
it is important to note that a retrovirus must "bring" its own reverse transcriptase in its capsid otherwise it is unable to utilize the enzymes of the infected cell to carry out the task due to the unusual nature of producing dna from rna