438a3a28_es___Dungeons_and_Dragons_Wiki__Perk_Benefit
[Perk Name] Ninja [Pro Perk Benefit] Reduce the penalties to hide and move silently when moving your full speed by half. [Perk Benefit] 
You do not show up on enemy Heart Beat Sensors.
CoDnD- Call of Duty 3.5 (3.5e Sourcebook)/Chapter 2: New Rules - Dungeons and Dragons Wiki
Perk Benefit