X

"X" is an informant that appears in Call of Duty: Black Ops.

Very little is known about this mysterious informant, neither was his/her agenda, but from the info "X" provided, he/she has access to highly classified intel, including CIA "Top Secret" grade info.

X has been providing info to Mason, Hudson, and Weaver as early as 1977.

Biography
What has been known about this informant only came from the Mason's, Weaver's, Hudson's text files on their respective CIA online account, accessible via the terminal inside the torture chamber. They were not among the mails in the email server, but as separate text files, denoted with a capital "X" in the file name.

For Weaver:


 * This dated to 1977, informing Weaver that his sister Olga survived the Stalin's Great Purge, but died during childbirth in 10/11/1955. Her daughter, Kristina, now lived in Moscow.

For Mason: For Hudson:
 * Informed that Frank Woods was alive and as the solo occupant in the "Hanoi Hilton" (however, whether this information was true or not remains unclear).
 * Told Clarke's intent to hide out at his brother's place in Johannesburg after he escaped from Dragovich's Ural mountain compound. This was mentioned in Clarke's journal and that was material marked "Top Secret" by the CIA.
 * Little is known what use could an intel that has been 10 years old - not to mention Clarke was long dead by now - would get Mason interested. However this could be a secret hint that Mason got as he, Hudson and Weaver took a trip to South Africa, possibly to this hide out.
 * "X" also showed he had connections to let Mason read messages from his father.
 * "X" warned Hudson he was under close watch by his superiors.