The structure of the Camorra is very simple: Boss (head of a clan), capozona (controls a part of the territory controlled by a clan), camorrista (soldier).
With the exception of the absence of a Consigliere, that is practically identical to Cosa Nostra. That would give Camorra a pyramid structure, yes?
Separate clans may have pyramid structures, but the camorra as a whole doesn't.
By they way, the Nuvoletta clan also had a consigliere and underboss, probably took after Cosa Nostra because the Nuvoletta brothers were made members.