Win a round without making any footstep noise, killing at least one enemy

Kill 500 enemies with the P90

Unlock all sub-machine gun kill awards

Kill a Counter-Terrorist while he is defusing the bomb

Kill 100 enemies with enemy weapons

Kill the entire opposing team without any members of your team taking damage

Kill 10,000 enemies

Kill 100 enemies with the SCAR-20

Stop defusing the bomb long enough to kill an enemy, then successfully finish defusing it

Kill 100 enemies with the knife

Plant a bomb within 25 seconds (excluding Demolition mode)

Kill 1,000 enemies with an M4 Assault Rifle

Win 25 Pistol Rounds in Competitive Mode

Kill 100 enemies with the G3SG1

Kill 100 enemies with the SSG 08

Kill an enemy with a knife during the Pistol Round in a Classic match

Kill an airborne enemy while you are also airborne

Win a round by picking up the bomb from a fallen comrade and successfully planting it

Kill 250 enemies with the Galil AR

Unlock all Pistol kill awards

Kill 100 enemies with the Tec-9

Inflict 1,000,000 total points of damage to enemies

Kill 200 enemies with the Desert Eagle

Earn 100 achievements

Kill 250 enemies with the MP7

Kill 200 enemies with the XM1014

Unlock all shotgun kill awards

Kill 250 enemies with the UMP-45

Kill an enemy player who has just killed four of your teammates within 15 seconds

Play 500 matches of Arms Race or Demolition mode

Kill 10 enemies you are already dominating during a single match

Kill an enemy with a gun they dropped during the current round

Plant five bombs in Demolition Mode

Kill 250 enemies with the AUG

Kill a zoomed-in enemy sniper with a knife

Kill 250 enemies with the PP-Bizon

Win five matches on Safehouse

Kill 100 enemies with the Glock-18

Kill an enemy with a grenade after dying

Kill 100 enemies with the P2000 or USP

Win 25 matches in Arms Race or Demolition mode

Kill 100 enemies with the FAMAS

Kill 500 enemies with the AWP

Kill 100 enemies with the Negev

Kill 100 enemies with the SG553

Kill 25 enemies with the Dual Berettas

Kill 100 enemies with the MAC-10

Kill an enemy who is on gold knife level with a sub-machine gun in Arms Race Mode

Kill 100 enemies with the Nova

Kill 100 enemies whom you are already dominating

Kill 100 enemies with the M249

Kill two enemy players with a single bullet

Kill an enemy who has killed a player on your friends list in the same round

Kill 100 enemies with the MP9

Kill 100 zoomed-in enemy snipers

Get a kill with every weapon

Kill 25 enemies with the P250

Win five matches on Bank

Defuse five bombs in Demolition mode

Kill 50 enemies with the Sawed-Off

Kill 25 enemies with the Five-SeveN

Kill three consecutive players using the first bullet of your gun in Arms Race mode

Kill an enemy who is carrying a hostage

Win five matches on Shorttrain

Win ten rounds in a row without dying or spending any cash in Classic mode

Win 200 rounds

Play a round on every Arms Race and Demolition map

Play 100 matches of Arms Race or Demolition mode

Kill 50 enemies with the MAG-7

Win five matches on Sugarcane

Win five matches on St. Marc

Kill 20 enemies who are dominating you

Dominate three enemies simultaneously

Kill an enemy while at one health

Kill an enemy whom you are dominating four additional times

Win five matches in Arms Race Mode on Shoots

In Classic mode, kill five enemies in a single round

In Classic mode, kill four enemy players within fifteen seconds

Rescue all hostages in a single round

Rescue all hostages within 90 seconds

Win a knife fight

Get kills with five different guns in a single round

Kill five enemy players with headshots in a single round

Win five matches in Arms Race Mode on Baggage

Do at least 95% damage to an enemy who is then killed by a another player

Kill 250 enemies with headshots

Kill an airborne enemy

Use Dual Berettas to kill an enemy player that is also wielding Dual Berettas

Kill an enemy with an un-zoomed sniper rifle

Kill 500 enemies

Kill a zoomed-in enemy sniper with a sniper rifle of your own

Kill an enemy with the last bullet in your magazine (excluding sniper rifles and Zeus x27)

Inflict 50,000 total points of damage to enemies

Kill an enemy who is on gold knife level with your own knife in Arms Race Mode

Dominate ten enemies

Kill an enemy while you are airborne

Win one match in Arms Race or Demolition mode

Kill an enemy just as their respawn protection ends in Arms Race mode

Kill an enemy who has been reduced to less than 5% health by other players

Kill an enemy who has killed four of your teammates within the current round

Win an Arms Race match without reloading any of your weapons

Kill an enemy whom you are already dominating

Kill a player who is on gold knife level in Arms Race Mode

Kill an enemy with the first bullet after your respawn protection ends in Arms Race mode

Kill an enemy who is dominating you

Be the last player alive in a round with five players on your team

Kill an enemy within three seconds after they recover a dropped bomb

Earn $50,000 total cash

Successfully defuse a bomb with less than one second remaining

Kill an enemy while they are reloading

Kill the entire opposing team without any members of your team dying

Kill four enemies within a single round

Win a round by defusing a bomb

Survive more than 30 seconds with less than ten health in Arms Race or Demolition mode

Dominate an enemy

Win a round by planting a bomb

Win 5 Pistol Rounds in Competitive Mode

Personally kill the entire Counter-Terrorist team before the bomb is planted in Demolition Mode

Kill 25 enemies

Be the first player to get a kill in an Arms Race or Demolition match

Inflict 2,500 total points of damage to enemies

Win ten rounds

Win five matches on Lake

Win a round against five enemies in less than thirty seconds