Sherry Birkin is a playable character during a segment of Claire's A and B scenarios. Her sections are entirely focused on evasion and stealth, as she has no weapons. Her primary goal is to escape danger and solve simple environmental puzzles to progress. You'll need to hide from enemies, crawl through vents, and interact with objects to open new paths. Her segments are designed to build tension and highlight her vulnerability. Focus on observation, timing your movements, and avoiding all contact with enemies. There are no combat 'builds' for Sherry; survival is purely about evasion.
While Sherry's segments focus on pure evasion, this defenseless stealth mechanic was later evolved into the high-stakes pursuit sequences found throughout the Resident Evil 3 (Remake).