Complete chapter 01.

Complete chapter 02.

Complete chapter 03.

Complete chapter 04.

Complete chapter 05.

Complete chapter 06.

Complete chapter 07.

Complete chapter 08.

Complete chapter 09.

Complete chapter 10.

Complete chapter 11.

Kill 15 enemies with your guns.

Kill 45 enemies with your guns.

Kill 90 enemies with your guns.

Get 10 kills with Lea's abilities.

Get 20 kills with Lea's abilities.

Get 30 kills with Lea's abilities.

Collect 12 ammo packs.

Collect 24 ammo packs.

Collect 48 ammo packs.

Get 3,000 xp.

Kill 5 enemies only with barrels.

Kill 10 enemies while sliding.

Buy your first upgrade.

Find and collect 3 intellisnippets.

Get 31 headshot kills.

Kill 21 enemies while the time is slowed down.

Kill 6 enemies using a headshot from more than 50m distance.