Pt. 1 introduced the class system as a strategic layer on top of the simulator's existing grind. Officer Duckman and Head Nurse were added, fundamentally changing team composition.
Most players now run with at least one tank (Duckman) and one runner (Paramedic or Intern) by Shift 5.
The patch also added a baseline sanity ceiling for the Security class (150%), making them the ideal front-desk anchor for the dual-camera Skinwalker check.