an imminent attack on the Gulf Coast's fuel supply. Sam becomes forced to protect the Paladin when Sadiq sends groups out to attack Fourth Echelon, allowing the Engineers to use a hijacked tanker to assault the Sabine Pass LNG terminal. After defending the Paladin and combating the fire at the terminal, Sam learns that the attacks were aimed at forcing the US president to begin continuity-of-government procedures – Sadiq's goal was to steal government data files by arranging for their transfer to a secure bunker under the Denver International Airport, by having COG procedures activated by his attacks. Against Caldwell's orders, Fourth Echelon infiltrates the bunker as Sadiq's sleeper agents take control of the facility and its personnel, including the Secretary of Defense. Before the Secretary succumbs to torture and yields to requests to transfer the files to Sadiq, Briggs kills him, but is promptly taken hostage along with several others as human shields. Sam, disguised as a hostage, helps Delta Force snipers to take down Sadiq's men, before incapacitating Sadiq after a fight, as he tries to escape using the Paladin. Sadiq boasts that he has already won, claiming that his death will lead the United States into war with nations that supported the Engineers, while his trial for war crimes will lead to the country's secrets being leaked. Sam opts to detain him, with Caldwell publicly concealing Sadiq's imprisonment by announcing his death. In a post-credits scene, while Fourth Echelon continues its operations, a recovered Coste joins Sam, as they prepare to interrogate Sadiq. Co-op missions Intertwined with the main plot, the co-op missions begin with Sam and Briggs infiltrating Kashmir. Finding a group of smugglers linked to the Engineers, Sam and Briggs discover intelligence connecting them to the Russian intelligence organization Voron, before they escape during a drone attack. Following a lead to a friendly missile base in Bangalore, they find the Indian inhabitants dead and Voron agents stealing the warhead from a missile. Securing the missile and learning that the agents are led by a man named Cherski, Sam and Briggs escape as the building is destroyed and Indian authorities arrive. Unaware of Cherski's identity, Sam and Briggs track him to a Voron base in Chittagong and find him living in a nearby apartment. They breach Cherski's panic room and find two people; uncertain which one is Cherski, they begin interrogating both and learn about a