Finish the Game on Normal Without Changing the Difficulty

Kill 30 Enemies with the Arm Micro

Kill 30 Enemies with the PAK-80

Kill 50 Enemies by Melee-Attacking from Behind

Kill 30 Enemies with the Mag 5

Kill 30 Enemies with the Tau Sniper

Kill 30 Enemies with the G-MAL

Kill 30 Enemies with the Mk-NDI

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

Kill 100 Enemies with Headshots

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Headshots

Find 20 Treasures