Kill 75 Enemies in a Row Without Dying

Defeat 30 Enemies in a Row with Your Side Arm

Finish the Game on Hard Without Changing the Difficulty

Finish the Game on Easy Without Changing the Difficulty

Kill 20 Enemies by Shooting from the Hip (without aiming)

Find 60 Treasures

Kill 30 Enemies with the M9

Kill 30 Enemies with the Arm Micro

Kill 30 Enemies with the Tau Sniper

Kill 50 Enemies by Melee-Attacking from Behind

Kill 30 Enemies with the G-MAL

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)

Find 20 Treasures