Why does iron will completely remove all survivor sounds

For a perk that says it reduces the sounds of grunts of pain it sure does a lot more than that, Survivors have no grunts of pain, no footstep noises, and no breathing noises of any sort just for having 1 perk. The amount that this perk does that it doesn't stay is just plain annoying, I understand that reducing the overall sound you make can be a perk but having all 3 of them for just 1 perk is completely absurd and is mentioned no where in game that it should work like that.

Comments