You completed the mission "Uncle Vlad".

Perform 5 assassinations in a row without being noticed or entering combat

Perform your first Finisher as Yasuke

Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.

Create a Molotov Cocktail.

Shoot down a Hunter or an Eliminator while they are jump attacking in the air.

Defeat Centurion.

Attack an enemy to save your partner who is grappling with that enemy.

Defeat Stinger.

Break free of a Cerberus while they are biting you or trying to push you down.

BOOM HEADSHOT

Trigger a gut grenade in mid-air