[Baron Munchausen]

Omnicron is the name of the leader of the evil Transformers. Maybe someone has just taken it for a 'title' instead of a name? It sounds like a mistake that someone just hunting around for titles might make.

It might also be a mispelling of Omicron, which is the 15th letter of the Greek alphabet. But I don't know why anyone would think that was a title for a leader, so the first idea seems the most likely.