Finish the Game on Normal Without Changing the Difficulty

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

Kill 50 Enemies with the Moss - 12

Kill 20 Enemies with Gunfire While Hanging

Find 20 Treasures

Kill 20 Enemies with the Desert - 5

Defeat 250 Enemies with Headshots

Kill 50 Enemies with the Micro-9mm

Kill 20 Enemies with the Wes - 44

Complete Landing Site

Complete Communications Center

Complete InGen Arrival