Defeat 100 civilians.

Take down a street performer who is imitating a statue.

Defeat an enemy by destroying the object they stand on.

Reach the end of the descent on Mission 6 having killed all of the enemies

Spend 50,000 Red Orbs

Kill 50 enemies using nothing but firearms

Take down Maurice

Assassinate Travis

Assassinate Layla

Approach the church

Eliminate the Saints

Defeat Sanchez with your bare hands