Broke things.

Kill 350 enemies with any rifle. (campaign only)

Kill 50 enemies with grenades. (campaign only)

Hit 10 enemies with your melee attack. (campaign only)

Stole.

Recover 12 Intel Items.

Complete Big Smile Lee.

Use 10 different melee weapons to defeat enemies.

Unlock every lockbox in Central.

Defended yourself against the Big Sister without dying.