Instead of making Sarah a Splinter Cell agent, why not use the female spy from Double Agent's multiplayer? Perhaps as a ShadowNet operative, what with that fancy wrist gadget that can hack,
Ubisoft on Twitter: "Relive Splinter Cell Blacklist & Double Agent on Xbox One via Backward Compatibility today! https://t.co/Mm9y7JpKIJ" / Twitter
Tom Clancy's Splinter Cell Double Agent - ps3 - Walkthrough and Guide - Page 1 - GameSpy