A Nation Mocked II: The Silence of the Damned
This single interactive scenario was a major convention event with four complete rounds of play, each lasting about 2 hours. The first and fourth rounds were interactive (semi-LARP); the second and third rounds were tabletop. All players participated in Rounds 1, 2, and 4, and most players participated in Round 3. Round 1 was a plenary session; Round 2 had a planned sixteen simultaneous tables (4 of which continued throughout Rounds 2 & 3); Round 3 had a planned eight simultaneous tables; Round 4 had a planned four simultaneous tables and a plenary "finale".
See A Nation Mocked II: The Silence of the Damned for complete details (this complex scenario is made of up multiple documents, several with multiple versions).