After repairing Generators for a total of 55/50/45 seconds, Repressed Alliance activates:

Press the Active Ability button to call upon The Entity to block the Generator you are currently repairing for 30 seconds, after which Repressed Alliance deactivates.
The Aura of the blocked Generator is revealed to all Survivors in white.
Repressed Alliance can only be triggered when no other Survivors are repairing your Generator.

Unlocks potential in your Aura-reading ability:
The Auras of Survivors in the Injured State or in the Dying State within 64/96/128 metres of your location are revealed to you.
Empathy does not reveal the Aura of a Survivor being carried by the Killer.

Increases your Walking speed by 10/15/20 percent.
Unlocks the ability to see your own Scratch Marks.

Unlocks potential in your Aura-reading ability.
The Auras of Breakable Walls, Pallets, and Windows are revealed to you within 24/28/32 metres.

Whenever another Survivor is hooked, Fast Track gains 1/2/3 Tokens, up to a maximum of 9/18/27 Tokens.

You consume all accumulated Tokens after a Great Skill Check on a Generator.
Each Token grants a stack-able 1 percent Progression bonus in addition to the default Progression bonus for succeeding a Great Skill Check.

When another Survivor is picked up, Background Player activates for the next 10 seconds:

When you start running, break into a sprint at 150 percent of your normal Running Movement speed for 4 seconds.
Background Player causes the Exhausted Status Effect for 60/50/40 seconds.

Background Player cannot be used when Exhausted.