Agents Sword and Shield: Big Game is a first expansion to the Zvezda's game Agents Sword and Shield. This expansion adds 2 new factions: the German Stasi and the PRC MGB. Thus, up to six players can now take part in the game. In the expansion there is a new mechanic of the revolution that can occur in third world countries. Revolutions provide players with the ability to make new tactical decisions in the game. Also, the expansion include a new type of agent - influence agent, which allows a draw in favor of a player who has such an agent in the region.