X

X is an informant appeared in Call of Duty: Black Ops.

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

Biography
What has been known about this informant only came from the Mason and Hudson's text files on their respective CIA online account, accessable via the terminal inside the torture chamber.

They were not among the mails in the email server, but as seperate text files, denoted with a capital "X" in the filename.

All 3 info were sent in 1978, and are as follows:

For Mason: For Hudson:
 * informed that Frank Woods was alive and as the solo occupient in the "Hanoi Hilton".
 * 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.
 * "X" warned Hudson he was under close watch by his superiors.