The SC Knife is a weapon used Sam Fisher.
The SC Knife is a versatile weapon used by Sam Fisher in most game of the series, most notably in the Chaos Theory game. It is used not only for melee attacks and interrogations, but also employed as an instrument for making cuts and alterations in electrical equipment and devices. When used in combat in Splinter Cell Chaos Theory, Sam can either execute guerillas by throat slitting or by performing a backstab. In an interrogation situation, it can be used to intimidate the interrogated or perform a killing shoulder-cut blow.