Defeat 20 enemies firing from-the-hip

Stealth take-down 15 enemies in a row

Perform 10 combo partner takedowns

Stealth take-down 10 armored enemies with melee by first removing their helmets without being detected

Defeat enemies with the vehicle, long-gun, melee, and grenade, in that order, in 20 seconds

Listen to all optional conversations

Defeat 5 consecutive enemies with the silenced pistol without being detected

Defeat 10 enemies with headshots in a row

Complete the Game in Crushing mode

Destroy a vehicle in Chapter 9 with an explosive

Ask Skeleseer a question

Find 35 treasures