Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Antillia	Complete the Act 1.
Bahamut	Get 5 kills in a row without dying.
Critical Massacre	Kill 100 human enemies.
Dagon	Complete the Act 2.
Depth Charge	Kill 50 drone enemies.
Electromagnetic Pulp	Kill 20 enemies with the EMP attachment grenade.
Hammer of Vulcan	Kill 5 AD-4 Vulcan Engineers.
Intel Analyst	Recover 10 data discs.
Jormungand	Win a match without dying.
Megalodon	Get 15 kills in a row without dying.
Multifaceted	Win a multiplayer match on each of the 5 maps.
Nice Ghoul Like You	Reprogram 10 UD-3 Ghoul Scouts.
Open Minded	Get 5 headshots in a row with the Sniper Rifle.
Pain in the Membrane	Get 50 headshots with any weapon.
Pescadero	Complete the Act 4.
Sargasso	Complete the Act 3.
Shotgun Wetting	Get 50 shotgun kills.
Trigger Happy	Kill 50 Shotgunners.
Triton	Complete the Act 5.
Up Close and Personal	Kill one of each enemy type with a melee attack.