While you are on the Hook in the Struggle Phase, Kinship activates:

If another Survivor is within 16 metres of your Hook while Kinship is active, the Struggle Phase timer is paused for 26/30/34 seconds.

Upon completing a Healing action on another Survivor, they benefit from the following effect until the next time they take damage:

Increases their Action speeds in Healing, Unlocking, Cleansing, and Blessing by 12/14/16 percent.

Once the Exit Gates are powered, No One Left Behind activates:

Increases your Unhooking and Healing speed by 30/40/50 percent.
Grants 50/75/100 percent bonus Bloodpoints for actions in the Altruism Category.
Grants the unhooked Survivor a 7 percent Haste Status Effect for 10 seconds.
The Auras of all other Survivors are revealed to you.

Increases the Repair speed of any other Survivor by 6/7/8 percent, while you are being chased within 24 metres of the Generator they are currently repairing.