- Hat Trick
Dominate three enemy players simultaneously
- Avenging Angel
Kill an enemy player in the same round as they kill a player on your friends list
- Head Shred Redemption
Kill 5 enemy players with headshots in a single round
- Bunny Hunt
Kill an airborne enemy
- Repeat Offender
Dominate an enemy player
- Primer
Do at least 95% damage to an enemy who is then killed by a another player
- The Unstoppable Force
Kill 10 enemy players in a single round
- Finishing Schooled
Kill an enemy player who has been reduced to less than 5% health by other players
- Kill One, Get One Spree
Kill an enemy player who is on a killing spree
- The Immovable Object
Kill an enemy player who has just killed 10 of your teammates in a single round
- Someone Set Up Us The Bomb
Win a round by planting a bomb
- Body Bagger
Kill 25 enemies
- Newb World Order
Win 10 rounds
- Points in Your Favor
Inflict 2,500 total points of damage to enemy players
- Shot With Their Pants Down
Kill an enemy player while they are reloading
- War Bonds
Earn $125,000 total cash
- Boomala Boomala
Plant 100 bombs
- The Hurt Blocker
Defuse 100 bombs
- Leet-er of Men
Win 5000 rounds
- Lost and F0wnd
KIll an enemy player with a gun they dropped that round
- Cowboy Diplomacy
Rescue 100 hostages
- SAR Czar
Rescue 500 hostages
- Blood Money
Earn $50,000,000 total cash
- Magnum Sniper Rifle Expert
Kill 1,000 enemy players with the Magnum Sniper Rifle
- Krieg 550 Commando Expert
Kill 500 enemy players with the Krieg 550 Commando
- Schmidt Scout Expert
Kill 1,000 enemy players with the Schmidt Scout
- D3/AU-1 Expert
Kill 500 enemy players with the D3/AU-1
- Rifle Master
Unlock all 10 rifle kill achievements
- KM Sub-Machine Gun Expert
Kill 1,000 enemy players with the KM Sub-Machine Gun
- Schmidt Machine Pistol Expert
Kill 500 enemy players with the Schmidt Machine Pistol
- Ingram Mac-10 Expert
Kill 500 enemy players with the Ingram Mac-10
- KM UMP45 Expert
Kill 1,000 enemy players with the KM UMP45
- Sub-Machine Gun Master
Unlock all 5 sub-machine gun kill achievements
- Master At Arms
Unlock every weapon kill achievement
- Dead Shepherd
Kill an enemy player who is leading the hostages without injuring any hostages
- Defuse This!
Kill the defuser with an HE grenade
- Three the Hard Way
Kill 3 enemy players with a single HE grenade
- Piece Treaty
Win 250 Pistol Rounds
- Wild Gooseman Chase
As the last living terrorist, distract a defuser long enough for the bomb to explode
- Target-Hardened
Survive damage from 5 different players within a round
- Clean Sweep
Kill the entire opposing team without any members of your team taking any damage
- Dead of Night
Do 5,000 damage with nightvision active
- Assault Map Veteran
Win 100 rounds on the CS_Assault map
- Compound Map Veteran
Win 100 rounds on the CS_Compound map
- Havana Map Veteran
Win 100 rounds on the CS_Havana map
- Italy Map Veteran
Win 100 rounds on the CS_Italy map
- Militia Map Veteran
Win 100 rounds on the CS_Militia map
- Aztec Map Veteran
Win 100 rounds on the DE_Aztec map
- Cobblestone Map Veteran
Win 100 rounds on the DE_Cbble map
- Chateau Map Veteran
Win 100 rounds on the DE_Chateau map
- Dust Map Veteran
Win 100 rounds on the DE_Dust map
- Inferno Map Veteran
Win 100 rounds on the DE_Inferno map
- Nuke Map Veteran
Win 100 rounds on the DE_Nuke map
- Piranesi Map Veteran
Win 100 rounds on the DE_Piranesi map
- Port Map Veteran
Win 100 rounds on the DE_Port map
- Prodigy Map Veteran
Win 100 rounds on the DE_Prodigy map
- Tides Map Veteran
Win 100 rounds on the DE_Tides map
- Train Map Veteran
Win 100 rounds on the DE_Train map
- Killanthropist
Donate 100 weapons to your teammates
- Defusus Interruptus
Stop defusing to kill a terrorist and then successfully finish defusing the bomb
- Spray and Pray
Kill two enemy players while you are blinded from a flashbang
- Friendly Attire
Start a round on the same team as 4 of your friends, with all of you wearing the same outfit
- The Road to Hell
Blind an enemy player who then kills a teammate
- Clan Warfare
Win a match of at least 10 players where the entirety of each team is composed of a single clan.
- Valve Gift Grab 2011 – CS:S
Collect three gifts dropped by opponents.
Locked - 3 guides