|Born||February 2, 1978|
|Birth place||Boston, Massachusetts|
|Affiliation|| Marine Force Recon|
|Appearances||Rainbow Six: Vegas (PSP)|
Brian Armstrong is an American Rainbow operative.
Brian was part of a two man advance team sent into Vegas at the start of the siege.
Brian analyses tactical situations and plans his teams approaches to their objectives. He is usually the first man through the door. A smart, skilled and loyal soldier, Brian sees nothing wrong with occasionally expressing the intensity of his emotions when situations call for letting off some steam.