Effects
Reduces noise level of footsteps on common surfaces (1.2% per level → -60% at Elite Level)
Reduces noise level of footsteps on uncommon surfaces (0.6% per level → -30% at Elite Level)
Increases covert movement speed (1% per level → +50% at Elite Level)
Reduces noise level of weapons and equipment (1.2% per level → -60% at Elite Level)
Elite level: Covert movement becomes equally quiet on all surfaces (-60% total)
How to rise
Moving with less than 25% speed, the speaker icon needs to have no bar. The XP gain is calculated based on distance covered when the player stops moving.