Complete 3 Bomb Defusal quests (Campaign only).

Kill 50 Enemies with the PM - 9m

Kill 20 Enemies with Headshots

Decide Yuma's fate (Campaign only).

Craft 15 syringes (Campaign only).

Buy all attachments and paint schemes for a single weapon (Campaign only).

Using a sniper rifle, kill 2 targets with a single shot (Campaign only).

Kill 4 enemies simultaneously with a single explosion (Campaign only).

Use the shotgun

Complete the tenth mission

Cause the Alien to retreat by using the flamethrower

Turn off the beacon

Perform 10 successful hacks