This page contains major spoilers of the "Apex Protocol"-campaign.
Viper is a CSAT-affiliated Chinese special operations unit deployed on Tanoa to assist the guerrilla group, Syndikat, as part of a proxy-war against NATO. The group is known for using prototype military gear with higher stealth and optics technology than conventional NATO and CSAT forces.
Apex Protocol Edit
Viper Team is sent to Tanoa to support Syndikat in their operations after a tsunami caused by the Eastwind device. This unit supplies Syndikat with various CSAT weaponry in order to foment unrest and destabilize the country, enabling CSAT to expand its political and military influence there under the pretext of restoring order.
As the CTRG sabotages Syndikat's operations, Viper Team joins the fight and tries to ambush any NATO special operations units operating on islands. At the same time, Viper Team captures CTRG's Group 14 leader, Captain Scott Miller, who had been spying both Syndikat and CSAT's activities in Tanoa for NATO.
Later, after CTRG manages to attack a small black site on Sosovu Island, NATO forces find that Syndikat betrayed Viper Team and killed all its members on the island, stealing the Eastwind device in the process.
CTRG and Viper Team come into conflict one last time, as CSAT attempts to negotiate a deal with Syndikat and buy back the Eastwind Device. Elements of Viper Team guard the CSAT negotiators and provide perimeter security for the industrial facility hosting the negotiations. After CTRG attacks the facility and steals the device, Viper Team attempts a counterattack, only to be pushed back by CTRG operatives and NATO air power.