(See Metal Gear Solid
A Kurd sniper who is a member of the Fox-Hound team.
She is able to stay at one place for days, not even a single muscle twitching, lurking for the target - and will be able to kill just about everyone she's after (Solid Snake is probably an exception to this rule, but that's a necessity dictated by the plot).
She's also responsible for raising the team's sled dogs.
(Her final scene in MGS is probably the most touching moment ever in the games of the decade... No wonder the nerd likes her.)