"The French just intercepted a message concerning a suspicious shipment headed for British soil."

— MI6 Officer getting informed of the threat.

The MI6 Officer is a character that appears alongside SIS Chief in Call of Duty: Modern Warfare 3.

He appears in the cutscene "Mind the Gap" while informing the SIS Chief of potential threats in London, he then gets informed to get the MI5 Director aware of the situation.