Performing the Damage Generator Action on a Generator triggers Nowhere to Hide:

The Auras of all Survivors within 24 meters of your position are revealed to you for 3/4/5 seconds.

You recuperate faster from missed attacks made with your main weapon.
Reduces the Cool-down of missed Basic Attacks by 20/25/30 percent.

Any Survivor performing a rushed action within 48 meters of your location has their Aura revealed to you for 6 seconds.
Im All Ears can only be triggered once every 60/50/40 seconds.

At the start of the Trial, 4 random Hooks are changed into Scourge Hooks:

The Auras of Scourge Hooks are revealed to you in white.
Each time a Survivor is unhooked from a Scourge Hook, the following effects apply:

The Auras of all other Survivors are revealed for 5/6/7 seconds.