Complete the indicated task to unlock the achievement.

Achievement	How to unlock
100 KILLS	GOT 100 KILLS.
1000 KILLS	GOT 1000 KILLS.
200 HEADSHOTS	GOT 200 HEADSHOTS.
50 HEADSHOTS	GOT 50 HEADSHOTS.
BUT WHY?	KILL ALL ENEMIES IN PRODUCTION LAB BEFORE DESTROYING ANY OBJECTIVES.
CATHARTIC ESCAPISM	BEAT THE ESCAPISM CAMPAIGN LEVEL.
COMPLIMENTS TO THE CHEF	BEAT THE CAFETERIA CAMPAIGN LEVEL IN NEW GAME + MODE WITH THE WARRIOR MONK MUTATOR.
FINISH CHAPTER 5	FINISH CHAPTER 5.
FINISH CHAPTER 6	FINISH CHAPTER 6.
FINISHED CHAPTER 1	FINISHED CHAPTER 1.
FINISHED CHAPTER 2	FINISHED CHAPTER 2.
FINISHED CHAPTER 3	FINISHED CHAPTER 3.
FINISHED CHAPTER 4	FINISHED CHAPTER 4.
FIRE IN THE HOLE	BEAT THE GREENS CAMPAIGN LEVEL WITH THE FLOOR IS LAVA MUTATOR.
FIREFIGHT LEVEL 10	FIREFIGHT LEVEL 10.
FIREFIGHT LEVEL 20	FIREFIGHT LEVEL 20.
FIREFIGHT LEVEL 30	FIREFIGHT LEVEL 30.
FIREFIGHT LEVEL 40	FIREFIGHT LEVEL 40.
FIREFIGHT LEVEL 50	FIREFIGHT LEVEL 50.
FIREFIGHT LEVEL 60	FIREFIGHT LEVEL 60.
FIREFIGHT LEVEL 70	FIREFIGHT LEVEL 70.
FIREFIGHT LEVEL 80	FIREFIGHT LEVEL 80.
HEY THATS CHEATING	BEAT THE ADMIN VENTS CAMPAIGN LEVEL WITHOUT ACTIVATING ANY OF THE FAN SWITCHES.
HOLOGRAM SUMMER	COMPLETE THE CITY LEVEL IN CAMPAIGN MODE WITH META CANNON EQUIPPED.
HUGE SUCCESS	BEAT THE PORTAL LABS CAMPAIGN LEVEL WITH THE ONE IN THE CHAMBER MUTATOR.
NEW GAME PLUS	COMPLETED A NEW GAME PLUS CAMPAIGN.
OFF THE HINGES	BEAT THE CORRIDOR CAMPAIGN LEVEL WHILE EQUIPPED WITH THE GRAVITY ARM CANNON.
OUT OF ORDER	BEAT THE MIDDLE ADMIN CAMPAIGN LEVEL WITHOUT USING THE STAIRS.
OVERCLOCKED	BEAT THE SERVER ROOM CAMPAIGN LEVEL WITH THE FLOOR IS LAVA MUTATOR.
PACEMAKER	DESTROY THE HEART WITHIN 60 SECONDS OF BRINGING ITS SHIELD DOWN.
PAIN TRAIN	BEAT THE TRAIN STATION CAMPAIGN LEVEL DEFEATING EVERY ENEMY BEFORE BOARDING THE TRAIN.
REMEMBER THE ARMORY	BEAT THE ARMORY CAMPAIGN LEVEL IN NEW GAME + MODE DEFEATING EVERY ENEMY BEFORE LEAVING THE LEVEL.
SAVOR THE MOMENT	BEAT THE MUSEUM CAMPAIGN LEVEL WITH THE LIMITED SLOW-MO MUTATOR.
SCIENCE AND INDUSTRY	COMPLETE THE R&D AND PRODUCTION LAB LEVELS IN CAMPAIGN MODE CHAPTER 1.
TIME PARADOX	COMPLETE CYBERMEDICINE CAMPAIGN LEVEL WITH AN ARM CANNON EQUIPPED.
WARRIOR IN A GARDEN	BEAT THE GARDENS CAMPAIGN LEVEL WITH THE WARRIOR MONK MUTATOR AND DEFEATING EVERY ENEMY.