Complex sentence: Part 1 consisted solely of the "Tournament 4 a Unique Opportunity", no stipulations were revealed prior to the event, and what specifically the "Unique Opportunity" entailed was not revealed until the end of the tournament.
Split into simpler sentences: Part 1 consisted solely of the "Tournament 4 a Unique Opportunity". No stipulations were revealed prior to the event, and what specifically the "Unique Opportunity" entailed was not revealed until the end of the tournament.