- 9x19 Sidearm Expert
Kill 200 enemy players with the 9x19 Sidearm
- 228 Compact Expert
Kill 200 enemy players with the 228 Compact
- .40 Dual Elites Expert
Kill 100 enemy players with the .40 Dual Elites
- ES Five-Seven Expert
Kill 100 enemy players with the ES Five-Seven
- Pistol Master
Unlock all 6 Pistol kill achievements
- Magnum Sniper Rifle Expert
Kill 1,000 enemy players with the Magnum Sniper Rifle
- CV-47 Expert
Kill 1,000 enemy players with the CV-47
- Maverick M4A1 Carbine Expert
Kill 1,000 enemy players with the Maverick M4A1 Carbine
- Bullpup Expert
Kill 500 enemy players with the Bullpup
- Krieg 552 Expert
Kill 500 enemy players with the Krieg 552
- Krieg 550 Commando Expert
Kill 500 enemy players with the Krieg 550 Commando
- IDF Defender Expert
Kill 500 enemy players with the IDF Defender
- Clarion 5.56 Expert
Kill 500 enemy players with the Clarion 5.56
- 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
- ES C90 Expert
Kill 1,000 enemy players with the ES C90
- 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
- Leone 12 Gauge Super Expert
Kill 200 enemy players with the Leone 12 Gauge Super
- Leone YG1265 Auto Shotgun Expert
Kill 200 enemy players with the Leone YG1265 Auto Shotgun
- Shotgun Master
Unlock both shotgun kill achievements
- HE Grenade Expert
Kill 500 enemy players with the HE grenade
- Knife Expert
Kill 100 enemy players with the knife
- M249 Expert
Kill 500 enemy players with the M249
- Master At Arms
Unlock every weapon kill achievement
- Expert Marksman
Get a kill with every weapon
- The Bleeding Edge
Win 100 knife fights
- Defuse This!
Kill the defuser with an HE grenade
- Sknifed
Kill a zoomed-in enemy sniper with a knife
- Three the Hard Way
Kill 3 enemy players with a single HE grenade
- Street Fighter
Kill an enemy player with a knife during the pistol round
- Give Piece a Chance
Win 25 Pistol Rounds
- 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
- Target-Hardened
Survive damage from 5 different players within a round
- Akimbo King
Use Dual Elites to kill an enemy player that also has Dual Elites equipped
- 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
- 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
- Bunny Hunt
Kill an airborne enemy
- Aerial Necrobatics
Kill an airborne enemy while you are also airborne
- Cold War
Win a round without your team killing any enemy players
- Killanthropist
Donate 100 weapons to your teammates
- Defusus Interruptus
Stop defusing to kill a terrorist and then successfully finish defusing the bomb
- 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