Detached 10 components from machines during combat.

Gather all "Letters of the Lost".

Buy all attachments and paint jobs for one weapon.

Liberate all outposts.

Find the lost Hollywood star.

In Multiplayer, fully suppress 5 enemies

In Multiplayer, perform 10 squad revives

In Multiplayer, have 3 squad members spawn on you

Kill 5 enemies within 10 seconds using any rifle

Purchase an upgrade under the Performance, Visual, and Paint Categories for your bike

Complete the World's End storyline

Max out either your Health, Stamina, or Focus