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Sniper Wolf (voiced by Tasia Valenza and Naoko Nakamura) is the Kurdish sharpshooter of the FOXHOUND unit.[35][36] Though snipers usually work in pairs, Sniper Wolf works alone.[37] She is armed with a PSG-1 sniper rifle. She is also another "disciple" of Big Boss, the antagonist from the previous two Metal Gear games.[38] In Metal Gear Solid she fights Snake twice, the first time results in Meryl being captured, and Snake being tortured,[39] in the second battle she is killed.[23]

The initial game plan for Metal Gear Solid 2: Sons of Liberty reveals that Sniper Wolf was to make a voice only cameo via the Cyborg Ninja featured in that game. The situation was that when Otacon would interact with the Ninja, she would respond in Wolf's voice, however this idea was later dropped.[40] Despite this she appears in a flashback when Otacon is reminiscing over why he always survives when people he loves die. The huskies she cared for are heard in the background of this flashback the same way they are heard before all the fights with Sniper Wolf (They are also heard after she is defeated by Solid Snake) The flashback uses actual footage from the first game.[41]

According to an IGN interview with Yoji Shinkawa, Sniper Wolf was originally intended to be a man, but when Shinkawa suggested to game creator Hideo Kojima that Wolf be a young lady Kojima thought it to be a much better idea.[42] A subsequent interview with Shinkawa revealed that the Sniper Wolf character is still popular amongst the staff at Konami.[43] Another example of her popularity was that during an online critics poll, she was named the "12th greatest video game boss of all time", amongst her FOXHOUND peers. from Wikipedia : List of Metal Gear Solid characters