Achieve Victory on Hard difficulty

Upgrade one piece of armor

Battle the God of Thunder

Achieve Victory on Easy difficulty

Secure an unconscious marine.

Get 30 kills with the Revolver.

Get 30 kills with the Pulse Rifle.

In Part I, damage an enemy with one gun and kill it with another.

Reach Purdan.

Advance a Recon to level 10.

Complete Rescue Mission “Jake’s Resort”

Finish the main story

Reach max level