Kill five enemies in a row with a brutal combo

Kill 20 enemies with the Desert - 5

Kill 50 enemies with the SAS - 12

Kill 20 enemies with the Wes - 44

Kill 50 enemies with the Micro - 9mm

Kill 50 enemies with the Moss - 12

Kill five enemies with a brutal combo

Find 30 treasures

Kill five enemies with a single punch, after softening them up with gunfire

Finish the game in Hard Mode

Kill 50 enemies in a row without dying

Catch the Skate Flu