Defeat four enemies with one explosion

Defeat 30 enemies in a row with your side arm

Defeat 30 enemies with the Dragon Sniper

Defeat 20 enemies with gunfire by aiming while hanging

Find 40 treasures

Defeat 30 enemies with the T-Bolt Sniper

Inspect almost every display case in the Cartagena Museum

Defeat 30 enemies with the KAL 7

Defeat 20 enemies by shooting from the hip (without aiming with L1/R1)

Defeat five Riot Shield enemies by running over their shield

Defeat ten enemies in a row, alternating hand-to-hand combat and gunplay

Defeat 50 enemies with hand-to-hand combat