Finish the Game on Normal Without Changing the Difficulty

Kill 30 Enemies with the G-MAL

Kill 30 Enemies with the M9

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

Kill 100 Enemies with Headshots

Kill 5 Enemies in a Row with Headshots

Kill 30 Enemies with the Mk-NDI

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

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Headshots

Find the Strange Relic

Activate a Tweak