Tom Clancy's Rainbow Six Siege: Operation Chimera introduces an intense action-packed experience on PlayStation 4, focusing on a new biohazard threat. This expansion features two unique Operators, Lion and Finka, who are tasked with containing a dangerous parasite infection in a small New Mexico town. Players will engage in tactical gameplay that emphasizes teamwork and strategy as they navigate the challenges presented by this new outbreak.

Operation Chimera not only expands the roster of Operators but also introduces fresh gameplay mechanics related to the biohazard theme. Lion's ability to reveal enemy positions and Finka's health-boosting capabilities enhance the cooperative aspects of the game. This expansion builds on the established gameplay of Rainbow Six Siege, providing both veterans and newcomers with new strategies and challenges to explore.