Playthrough Guide Part 1...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Bloodmoney	Find and burn Mallory's hidden stash.
Bodycount - Tier 1	Take down 150 enemies.
Bodycount - Tier 2	Take down 500 enemies.
Bodycount - Tier 3	Take down 1500 enemies.
Bodycount - Tier 4	Take down 3000 enemies.
Bodycount - Tier 5	Take down 5000 enemies.
Bow Completionist	Own the compound bow with all attachments.
Contract Closed - 01	Complete contract 01 on any difficulty.
Contract Master - 01	Finish Contract 01 in hard mode without getting killed.
Contract Master - 02	Finish Contract 02 in hard mode without getting killed.
Contract Master - 03	Finish Contract 03 in hard mode without getting killed.
Contract closed - 02	Complete contract 02 on any difficulty.
Contract closed - 03	Complete contract 03 on any difficulty.
Headhunter - Tier 1	Take down 50 enemies with headshots.
Headhunter - Tier 2	Take down 150 enemies with headshots.
Headhunter - Tier 3	Take down 300 enemies with headshots.
Headhunter - Tier 4	Take down 500 enemies with headshots.
Headhunter - Tier 5	Take down 800 enemies with headshots.
Knife Collector	Unlock three knives.
Piano Man	Try out a new profession.
Pistol Completionist	Own a pistol with four attachments.
Rifle Completionist	Own a rifle with four attachments.
Rise and Shine	Find a familiar looking syringe.
Safe Cracker	Open the hidden safe in contract 02.
Shotgun Completionist	Own a shotgun with two attachments.
Stay Out!	Discover the hidden area in the hive ... and escape!
Sticking to Protocol	Complete the tutorial.