: Mason and Reznov lead a massive prisoner uprising. Reznov sacrifices himself to allow Mason to escape, but due to his brainwashing, Mason continues to hallucinate Reznov's presence throughout his later missions in Vietnam and Laos .
: Mason is interrogated by Jason Hudson and Grigori Weaver to decode a series of mysterious numbers being broadcast to Soviet sleeper agents . These agents are tasked with releasing a deadly chemical weapon called Nova 6 across the United States . Call of Duty Black Ops [RГ©giГіmentes][ISO]
: Mason, Frank Woods, and Joseph Bowman track the Soviet conspiracy through various locations, including the Baikonur Cosmodrome and the jungles of Vietnam . : Mason and Reznov lead a massive prisoner uprising