- Black Bag Operation
Win a round while making no footstep noise and killing at least one enemy
- Blitzkrieg
Win a round in less than 30 seconds (against at least 5 enemy players)
- Safety First
Survive a shot to the head because you had the good sense to wear a helmet
- Head Shred Redemption
Kill 5 enemy players with headshots in a single round
- Repeat Offender
Dominate an enemy player
- Bunny Hunt
Kill an airborne enemy
- Variety Hour
Get kills with 5 different guns in a round
- The Unstoppable Force
Kill 10 enemy players in a single round
- Magic Bullet
Kill an enemy with the last bullet in your magazine (excluding sniper rifles)
- Shot With Their Pants Down
Kill an enemy player while they are reloading
- The Immovable Object
Kill an enemy player who has just killed 10 of your teammates in a single round
- Body Bagger
Kill 25 enemies
- Avenging Angel
Kill an enemy player in the same round as they kill a player on your friends list
- Points in Your Favor
Inflict 2,500 total points of damage to enemy players
- Newb World Order
Win 10 rounds
- Finishing Schooled
Kill an enemy player who has been reduced to less than 5% health by other players
- War Bonds
Earn $125,000 total cash
- Lost and F0wnd
KIll an enemy player with a gun they dropped that round
- Insurgent
Kill an enemy player that is dominating you
- The Hurt Blocker
Defuse 100 bombs
- Second to None
Successfully defuse a bomb with less than one second remaining
- Leet-er of Men
Win 5000 rounds
- Cowboy Diplomacy
Rescue 100 hostages
- SAR Czar
Rescue 500 hostages
- Good Shepherd
Rescue all hostages in a single round
- Freed With Speed
Rescue all hostages within 90 seconds
- 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
- KM UMP45 Expert
Kill 1,000 enemy players with the KM UMP45
- Sub-Machine Gun Master
Unlock all 5 sub-machine gun kill achievements
- HE Grenade Expert
Kill 500 enemy players with the HE grenade
- Master At Arms
Unlock every weapon kill achievement
- A World of Pane
Shoot out 14 windows in a single round on cs_office
- 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
- Clusterstruck
Kill 5 players in a C4 blast
- Wild Gooseman Chase
As the last living terrorist, distract a defuser long enough for the bomb to explode
- Clean Sweep
Kill the entire opposing team without any members of your team taking any damage
- Mad Props
Break 15 props in a single round
- The Art of War
Spray 100 decals
- Dead of Night
Do 5,000 damage with nightvision active
- 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
- Office Map Veteran
Win 100 rounds on the CS_Office 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
- Nuke Map Veteran
Win 100 rounds on the DE_Nuke map
- Piranesi Map Veteran
Win 100 rounds on the DE_Piranesi 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
- Friendly Attire
Start a round on the same team as 4 of your friends, with all of you wearing the same outfit
- 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.
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