Make five enemies drop their grenade by shooting them

Successfully counter all of a Brute’s damage-giving attacks

Defeat five enemies in a row using stealth attacks

Defeat 20 enemies with hand-to-hand combat

Find one treasure

Complete story mission 6.

Kill 20 enemies in 60 seconds.

Kill 50 enemies in a row with inventory weapons without losing health.

Complete story mission 4.

Collect 100 resource items.

Travel 75 kilometers by land vehicle.

Complete story mission 3.