Complete the following tasks to unlock the achievements.

Achievement	How to unlock	Points
Annihilator	Achieve 75 victories in in Team Deathmatch.	500
Automaton	Kill twenty enemies with assault rifles.	500
Cool pal	Achieve ten victories in Team Deathmatch.	500
Cowboy	Kill fifteen enemies with a headshot using handguns.	500
Drum Beat	Kill hundred enemies with assault rifles.	500
Eagle Eye	Kill fifty enemies using sniper rifles.	500
Easy shot	Kill twenty enemies with the "Benelli Nova" shotgun.	500
Headshot	Kill five enemies with a headshot.	500
Legend	Kill hundred enemies.	500
Leon	Kill 25 enemies with the "AWP" sniper rifle.	500
Long Run	Kill eighty enemies with machine guns.	500
Lost Hero	Kill fifteen enemies with the "M-16A4" assault rifle.	500
Natural Selection	Kill 35 enemies with the "Vector" submachine gun.	500
New Knight	Kill seventy enemies.	500
Nice shot	Kill fifty enemies with shotguns.	500
Reaper	Kill fourty enemies with a headshot.	500
Swat man	Kill 45 enemies with an "P416" assault rifle.	500
Tiger Tiger	Kill 45 enemies with a headshot using assault rifles.	500
You Shall Not Pass!	Kill 90 enemies with sniper rifles.	500