Originally posted by another user
Ninja Pro silences falling, mantling, weapon switches, equipment deployment, and more. It also more than doubles the sound of enemy footsteps, as well as amplifying enemy callouts, reloading, and equipment deployment. It is useful to know the language of your team to distinguish friend from foe.
Just got N.P and tested it with my m8 on the other team and it seems to do none of the above apart from picking up footsteps abit further away.