Kick a Guard while using the Flying Machine.

Kill 20 enemies with Mk-NDI grenades

Find 20 treasures

Kill 100 enemies with headshots

Find the Strange Relic

Kill 20 enemies with a brutal combo

Play in the swimming pool on the Cruise Ship

Defeat 30 enemies with the KAL 7

Kill 10 enemies with thrown-back grenades

Make five enemies drop their grenade by shooting them

Defeat five enemies in a row with headshots

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

Defeat 20 enemies with hand-to-hand combat