Headshot in beast mode in Unity: http://i.imgur.com/EhWFAYk.jpg
For the other AC Unity players here that are interested, here's what my equipment and weapons are:
Hood: Legendary Prowler Hood
Chest: Legendary Military Coat
Wrist: Legendary Sans-Culottes Bracers
Waist: Legendary Musketeer Belt
Legs: Legendary Phantom Breeches
Sword: The Sword of Eden
Pistol: Gold-Plated Pistol
Color scheme: Pure Shadow
Here's my assassin (front and back)
I love playing coop so message me on Steam if you want to do some coop missions