He was an anarchist, and he opposed Cuba state capitalism. He had a discussion forum on Anarchism and socialism, he used to publish articles that he who wrote about anarchism, socialism and cuba state capitalism
It was a brutal capitalist dictatorship which took place in the middle of the Cold War. That army was called the popular army by the government of Allende, and the same army was sent to repress the miners when they went in strike and Castro supported the repression of the workers. The ICC has made a good recount of that process since the election of the government of Salvador Allende. This is one of their articles: