Complete the indicated task to unlock the achievement.

Achievement	How to unlock
CONTRACTOR	25 team wins.
DESTROYER	150 grenadekills.
GUNSMITH I GRADE	150 w-tasks.
GUNSMITH II GRADE	25 w-tasks.
GUNSMITH III GRADE	3 w-tasks.
MERC	Kill 10 enemies.
NEMESIS II	50 double headshots.
NEMESIS I	500 double headshots.
PROKILLER I GRADE	500 PROKills.
PROKILLER II GRADE	50 PROKills.
PROKILLER III GRADE	5 PROKills.
QUADKILLER I GRADE	100 quadkills.
QUADKILLER II GRADE	10 quadkills.
SHARP END	100 kills with knife.
SPECNAZ	500 double kills.
TRIPLE KILLER	50 triplekills.
VIP KLLER	300 VIPKills.