Here is the full list of all 43 John Wick Chronicles achievements.
10 Headshots in a row
Dying by your own grenade
Die 5 times in a row without hitting a grunt
Die during the garage boss
Fire 50 000 bullets
Fire 4 000 bullets in a level
Kill 3 enemies with 1 grenade
Hit a grunt with a magazine.
50 kills from grenade
Kill 5 enemies without missing
Shoot and kill all enemies fast roping from all the helicopters
Complete Simulation Mode
Kill all enemies with Semi-Auto weapon only
200 headshots
Kill all enemies using the assault rifle
Throw back grenade and kill an enemy
Kill 500 enemies
Die without any shots fired.
Complete Arcade Mode
100 headshots
Shoot and kill the boss helicopter
Kill 200 enemies
Die during the rooftop boss
10 head shots
Get 4 kills without missing a shot
Kill all civilians in the training room.
Kill the Boss, while taking no damage from his Minigun
Drop your weapon 20 times
Destroy an enemy vehicle
Take 50 damages before dying
Kill 5 enemies with headshots
Juggle the gun from one hand to the other
25 Leg-Shots
Fire 20 bullets before hitting a grunt.
20 Head or Heart-shots in a row
Complete Training Sim in under 3 minutes
50 Crotch-Shots
Kill all Targets with Grenades
All kills are either Head or Heart Shots
10 Heart-shots in a row
Kill all enemies without using the sniper rifle
Throw back a grenade and kill an enemy
Take out the helicopter rappellers