Lieutenant, Junior Grade Rachel-343 (full name Rachelle Rébecca Kempa at birth, Rachelle Peterson post-adoption and Rachel Hawke after enlistment with the UNSC Military Intelligence Division, also known by the designations Sierra-Three-Four-Three, Codename: ANDRASTE and Winter Five) is a highly experienced operative and junior officer of the UNSC Navy. She served during the last years of the Human-Covenant War as a SPARTAN-II Commando of Project ARES, the third class of the SPARTAN-II Program, and later attached to Winter Team. She was a notable participant of the Paris, Bliss, Hydra and Reclamation campaigns. Following the end of the Great War, she participated in Operation: SAVIOUR alongside her mentor, Laszlo-108, until it was called off in 2596. After this, she assumed the role of comm