Whenever you complete a Generator with at least one other Survivor, Friendly Competition activates:

Increases your Repair speed, and that of the other Survivor(s) who completed the repairs with you, by +5 percent for the next 45/60/75 seconds.

Press the Active Ability button while running to trigger the Endurance Status Effect for 0.5 seconds.
Dead Hard causes the Exhausted Status Effect for 60/50/40 seconds.

Dead Hard cannot be used when Exhausted.

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

After repairing Generators for a total of 70/60/50 percent, Flashbang activates:

Enter a Locker while empty-handed and press the Ability button to craft a Flash Grenade.
The Flashbang is left behind when escaping the Trial.