Called the Archaeans, this alien parasite has taken over four key regions in the United States: New York, San Francisco, Alaska, and New Mexico. Your objective is to head into these regions, gather intelligence within their three contaminated zones, push back the threat, and extract your squad safely. As part of REACT (Rainbow Exogenous Analysis and Containment Team), you will be able to pick between 18 of the Rainbow Six operators and each one has a specific set of weapons, special abilities, and their own progress track. There will be 12 containment zones located across the US, featuring various challenges to test your tactical abilities. Every incursion is unique due to dynamic variables such as the Sprawl’s behavior, missions, enemies, and more. Fail and your Operators will go MIA. Be prepared to fight over 10 unique parasitic archetypes, such as the Tormenter and the Apex, along with their abilities, and randomly occurring mutations. There’s also the Proteans which have adopted the form of REACT Operators, and sometimes have the ability to mimic Operator behavior.