Kill 100 aliens

Attend the final ceremony.

Complete a WANTED Dead quest.

Kill 4 enemies simultaneously with one explosion (Single Player only).

Create a customized weapon.

Kill a zombie with 10 different melee weapons.

Take steroids in SP

Defeat the Cycloid

Deploy your wingsuit for the first time (not achievable in Tutorial)

Make your first Gear Purchase

Grind your first rail (not achievable in Tutorial)

Liberate all outposts.