Set five enemies on fire in 30 seconds.

Collect three gifts dropped by opponents.

Complete each class to unlock the next.

Achieve 5 of the achievements in the Demoman pack.

Achieve 11 of the achievements in the Demoman pack.

Achieve 17 of the achievements in the Demoman pack.

Kill 30 players with air burst sticky bombs.

Bounce an enemy into the air and kill them before they land.

Charge and kill someone with your shield bash.

Kill a charging Demoman while charging.

Use a critical swing with the Eyelander to kill 5 enemy players.

Do 1 million points of total blast damage.

Decapitate a cloaked Spy.

Decapitate an enemy Soldier who is brandishing the Equalizer.

Decapitate your nemesis.

Decapitate 50 enemy players.

Decapitate 4 players with only 10 seconds between each kill.

Destroy 50 buildings.

Destroy 5 enemy Engineer buildings during a single ÜberCharge from a Medic.

Destroy 100 enemy sticky bombs with the Scottish Resistance.

Dominate 3 Engineers.

Kill 10 enemies while assisting or being assisted by another Demoman.

Use the Sticky Launcher to kill an enemy player via environmental damage.

Provide an enemy player with a freeze cam of you shaking your rump.

Provide an enemy player with a freeze cam of your smiling face.

Kill at least three players with a single detonation of sticky bombs.

Using the Scottish Resistance, kill 3 players in separate explosions without placing new sticky bombs.

Kill 20 spies within 5 seconds of them sapping a friendly building.

Destroy an Engineer building that you can't see with a direct hit from your Grenade Launcher.

Blow up an Engineer, his sentry gun, and his dispenser with a single Sticky bomb detonation.

Kill an enemy player with sticky bombs within 5 seconds of them teleporting.

Kill an enemy that you couldn't see at the beginning of your charge.

Kill 500 enemy Soldiers

Kill 2 people in a single sticky jump.

Kill 3 enemies capping or pushing a cart in a single Stickybomb detonation 3 separate times.

Kill 25 players defending a capture point or cart.

Kill 3 Heavies from full health with a single sticky bomb detonation.

Kill 25 Scouts and Pyros with the Grenade Launcher.

Kill 50 enemies with direct hits from the Grenade Launcher.

Get a melee kill while sticky jumping.

Parachute 19.47 miles.

Kill 3 players during the same parachute deploy.

Kill a parachuting player while parachuting.

Get 3 kills within 6 seconds using the Demoman charge.

Sticky jump a really long way...

Sticky jump onto a cap point and capture it.

Glory in the slaughter of your enemies using the Eyelander.

Dominate a player using the Pyrovision Goggles and earn your own pair!

Achieve 5 of the achievements in the Engineer pack.

Achieve 11 of the achievements in the Engineer pack.

Achieve 17 of the achievements in the Engineer pack.

Haul buildings 1 km over your career.

Destroy 25 sappers on buildings built by other team members.

Destroy 50 enemy stickybombs lying in range of friendly buildings.

Have dispensers you built extinguish 20 burning players.

Have dispensers you created dispense a combined amount of 100,000 health over your career.

Have a dispenser heal 3 teammates at the same time.

Provide an enemy player with a freeze cam of you and the sentry that just killed them.

Provide an enemy player with a freeze cam of your guitar playing skills.

Keep a Heavy healed with your dispenser while he gains 5 kills.

Help a teammate construct a building.

Perform 50 repairs and/or reloads on a Sentry gun being Wrangled by another Engineer.

Get 10 assists with another Engineer where a sentry gun was involved in the kill.

Kill a disguised spy with your Wrench.

Kill 20 players carrying the intelligence.

Destroy an enemy Engineer's sentry gun with a sentry under control of your Wrangler.

Kill 10 Snipers with a sentry gun under control of your Wrangler.

Kill a spy and two sappers within 10 seconds.

Kill 3 cloaked Spies with a sentry gun under control of your Wrangler.

Have a sentry shielded by the Wrangler absorb 500 damage without being destroyed.

Kill 10 enemies outside the normal sentry gun range using the Wrangler.

Haul a level 3 sentry gun into a position where it achieves a kill shortly after being redeployed.

Manage to get to and then remove a sapper placed on your building while you were several meters away.

Repair a sentry gun under fire while being healed by a Medic.

Repair 50,000 damage to friendly buildings constructed by other players.

Kill 3 enemies with revenge crits without dying.

Use a revenge crit to kill the enemy player that destroyed your sentry gun.

Have your sentry kill the enemy that just killed you within 10 seconds.

Use a sentry gun to kill 25 enemy players that are capturing a point.

Rack up 5000 kills with your sentry guns.

Use your shotgun to finish off an enemy recently damaged by your sentry gun.

Help a single building tank over 2000 damage without being destroyed.

Smash an enemy player's head in with your guitar.

Teleport 100 team members into battle.

Upgrade 50 buildings built by other team members.

Pick up 10,000 waste metal from pieces of destroyed buildings.

Jump into a pool of refreshing water while on fire.

Kill an enemy within 5 seconds of you traveling through an Engineer's teleporter.

Get five kills in a row without dying.

Get 25 headshots as a Sniper.

Trick an opposing Medic into healing you.

Accumulate 25000 heal points as a Medic.

Accumulate 1000 total kills.

Accumulate 10 sentry gun kills with a single sentry.

Kill the Horseless Headless Horsemann.

Collect the Horseless Headless Horsemann's Haunted Metal.

Collect a Soul Gargoyle in Mann Manor.

Collect 20 Halloween pumpkins from dead players to unlock a hat.

Craft the Saxton Hale Mask.

Kill a Spy disguised as your current class.

Dominate a player wearing the Ghastly Gibus to earn your own.

Collect 250 ducks.

Kill 30 enemies by bumping their bumper cars off the tracks.

Earn 4 of the Carnival of Carnage achievements.

Respawn 30 ghost teammates during bumper car games.

Score 3 goals in bumper car soccer.

Kill 15 enemies while under the effect of Merasmus's melee-only curse.

Win each of the 3 bumper car games to earn a bonus Halloween Gift Cauldron.

Kill MONOCULUS!

Perform 17 environmental kills in Hell

Send Redmond/Blutarch to Hell 10 times

Use spells to kill 25 players

Earn 4 of the Helltower achievements

Get and use a rare spell

Kill 99 skeletons

Get the loot from Skull Island in Hell

Win 142 rounds

Kill a player scared by a ghost.

Get to Loot Island and claim your reward!

Get to Skull Island and claim your reward!

Kill MERASMUS!

Cause the deaths of 5 players by exploding nearby pumpkin bombs.

Achieve 10 of the achievements in the Heavy pack.

Achieve 16 of the achievements in the Heavy pack.

Achieve 22 of the achievements in the Heavy pack.

Get 1000 assists.

Get 25 enemy kills where you either assist or are assisted by another Heavy.

Kill 10 enemies with a Medic assisting you, where neither of you die.

Block the enemy from moving the payload cart 25 times.

While invulnerable and on defense, block an invulnerable enemy Heavy's movement.

Remove 20 stickybombs by killing the Demomen who produced them.

Take 1000 points of damage in a single life.

Kill 25 enemies while you're standing on a control point you own.

Kill 50 enemies within 3 seconds of them attacking your Medic.

Earn a domination for a Medic who's healing you.

Eat 100 sandviches.

Fire $200,000 worth of minigun rounds in a single life.

Be the first on your team to start capturing a control point in a round.

Provide an enemy with a freezecam shot of you taunting while invulnerable.

Heal 1000 damage with med-kits in a single life.

Kill 15 enemies capturing a control point you own.

Kill an enemy with a critical punch.

Get 20 kills on players that you're dominating.

Kill 10 enemies carrying your intelligence.

Kill 10 Heavies with The K.G.B.

Work with a friendly Medic to kill an enemy Heavy & Medic pair.

Kill 10 enemies in mid-air with the minigun.

Kill 50 Scouts using Natascha.

Kill an enemy with your shotgun while you're out of minigun ammo.

Kill an enemy with a taunt.

Kill 50 enemies while both you and your victim are underwater.

Kill 5 enemies without spinning down your gun.

Get 50 caps on payload maps.

Get ÜberCharged 50 times.

Help 5 teammates get revenge on their nemeses.

Kill 20 enemies while being recharged by a dispenser.

Survive a direct hit from a critical rocket.

In a single life, get shot, burned, bludgeoned, and receive explosive damage.

Kill an enemy in the first 5 seconds after you exit a teleporter.

Kill or assist in killing 10 cloaked Spies.

Kill 79 enemies who have Balloonicorn pets.

Kill a charging Demoman.

Get five revenge kills.

Achieve 7 of the achievements in the Doomsday pack.

Kill an enemy who has damaged the Australium carrier in the last 3 seconds.

Kill an enemy within the broken crate area while they attempt to pick up the neutral Australium.

Kill 6 enemies carrying the Australium during the same round.

Kill 3 players riding the elevator within 10 seconds.

Launch the rocket as all 9 classes.

Play in a game with 5 or more players from your Friends list.

Win a round after the enemy team has opened the rocket lid.

Push a player into the rocket's exhaust path at the end of the round.

Win a round with at least 5 teammates on the elevator.

Pick up the Australium from its home position and capture it without dropping it.

Win 138 Rounds.

Achieve 7 of the achievements in the Foundry pack.

Play through a back-and-forth battle for 15 control point captures.

Capture the final control point within five seconds of your team capturing the previous control point.

Kill an enemy who is capturing a control point with a critical hit.

Kill two people on the roof of the center control point in a single life.

Get one or more kills as all nine classes in one round.

Play in a game with five or more players from your Friends list.

Win a round in which the enemy team has attempted to capture your final control point.

Kill a player by pushing them into the cauldron fire.

Capture a control point within 12 seconds after exiting a teleporter.

Be part of a team that wins within two minutes.

Win 137 Rounds.

Capture the final control point within 15 seconds of your team capturing the previous control point.

Kill 15 enemies while they are capturing a point.

Kill five enemies while they are in the water.

Win a round in which the enemy team has attempted to capture your final control point.

Win 142 Rounds.

Win 140 Rounds.

While rocket jumping, use a rocket to kill a rocket jumping enemy who also kills you with a rocket.

Kill 15 enemies in the rafters above the central capture point.

Win a round in which the enemy team has attempted to capture your final control point.

Wipe the other team with 12 or more players on the server.

Win 141 Rounds.

Win 139 Rounds.

Achieve 10 of the achievements in the Medic pack.

Achieve 16 of the achievements in the Medic pack.

Achieve 22 of the achievements in the Medic pack.

Assist in killing 3 enemies on an enemy control point, in a single life.

Assist in destroying 5 enemy Engineer buildings with a single ÜberCharge on a Demoman.

Assist in punching 2 enemies with a single ÜberCharge on a Heavy.

Assist a Heavy in killing 10 enemies, where neither of you die.

Assist a fellow Medic in killing 3 enemies in a single life.

Assist in burning 5 enemies with a single ÜberCharge on a Pyro.

Assist in killing 3 enemies with a single ÜberCharge on a Scout.

Assist in exploding 5 enemies with a single ÜberCharge on a Soldier.

Assist in killing 20 nemeses.

Kill 10 Medics with your bone saw.

Hit enemies with your bonesaw 5 times in a row without dying or missing.

Use your bonesaw to kill a spy who has been calling for 'Medic!'.

Block the enemy from capturing a control point with an ÜberCharged teammate.

ÜberCharge 5 of your Steam Community Friends.

ÜberCharge 2 teammates at once.

Deploy an ÜberCharge within 8 seconds of a nearby enemy Medic deploying his.

Extinguish 100 burning teammates.

Provide an enemy with a freezecam shot of you taunting above their ragdoll.

Be healing a teammate as he achieves an achievement of his own.

Heal 200 teammates after they've called for 'Medic!'.

Heal an Engineer as he repairs his sentry gun while it's under enemy fire.

Accumulate 1 million total heal points.

Accumulate 10000 heal points health in a single life.

Accumulate 7000 heal points in a single life.

Heal a teammate who's taking fire from 4 enemies at once.

Join a game that one of your friends is in and then deploy an ÜberCharge on him.

Kill an enemy Spy that you have been healing.

Kill 2 enemies in a single life, while having your ÜberCharge ready, but undeployed.

Deploy 3 ÜberCharges in less than 5 minutes, and assist in 5 kills during that time.

Save a falling teammate from dying on impact.

Deploy an ÜberCharge on a teammate less than a second before they're hit by a critical explosive.

Have an ÜberCharge ready before the Setup phase ends.

Work with 2 other Medics to deploy 3 simultaneous ÜberCharges.

In a team with no Medics, be the first person to switch to Medic after a teammate calls for 'Medic!', and then heal 500 health.

Kill 50 Scouts with your syringe gun.

Play a full round without killing any enemies, and score the highest on a team of 6 or more players.

Melee kill 10 Snipers using The Classic.

Have 2 BEST FRIENDS at the same time.

Earn all credit bonuses in an advanced difficulty mission.

Collect 1,000,000 credits in your career.

Complete all waves successfully in a mission.

Complete the Crash Course, Doe's Drill, and Mann-euvers missions.

Defeat a wave in an advanced difficulty mission without dying once.

During a wave, defend the hatch 10 times from robots about to deliver a bomb.

As a Demoman, kill 10 robots in a single detonation.

Destroy a tank within 20 seconds of its arrival.

Destroy the tank during the final seconds of the bomb being deployed.

Destroy two tanks within 5 seconds of each other.

Earn a credit bonus at the end of a wave.

As an Engineer, escape with your sentry as a sentry buster is about to detonate.

During a wave, use rage as a Heavy to push a robot about to deliver the bomb.

In a single wave, kill 15 bomb-carrying robots in a row before they level up.

Kill 5 Medics that are ready to deploy an ÜberCharge in a wave.

Destroy 100,000 robots.

Destroy 1,000,000 robots.

Destroy a sentry buster before it reaches its target.

Kill 500 gate crashing robots in Mannhattan.

Ooohh Ooh Ahh Ahhhh! ...in Mannhattan

Play an advanced mission without losing a single gate in Mannhattan.

As a team, pit 10 guys in a single wave in Mannhattan.

As a team, kill 50 stunned radiowave robots in an advanced mission in Mannhattan.

Play an advanced wave in Rottenburg without the bomb entering the town.

Pit 100 enemies in Rottenburg.

Kill a tank before it crashes through the barrier in Rottenburg.

Max out all resistances on a single class.

Max out all primary weapon upgrades.

Use one ÜberCharge to quickly revive 2 teammates within 5 seconds.

As a Medic, share your canteen 5 times in a single wave.

Block 5,000 damage with the shield as a Medic in a single life.

Prevent the bomb from ever reaching an alarm zone during the final wave of an advanced difficulty mission.

Pick up a credit pile that is about to expire.

Play an entire mission as a single class, and do this for every class.

Complete a mission with 5 people on your Friends List.

As a Pyro, reset the bomb 3 times in a single wave.

Kill 5 enemies with a single rocket while upgraded with rocket specialist.

Stun 50 robots while upgraded with rocket specialist.

As a Scout, use the Sandman to mark 15 robots for death in a single wave.

Kill 5 robots in a single explosion from detonating a sentry buster.

As a Sniper collect $500 in a mission without running over the currency packs.

As a Sniper, kill 4 enemies simultaneously.

Buff 4 or more teammates as a Soldier at the same time in a single wave.

As a Spy, sap 10 robots at once.

During a wave, use a canteen charged with 'Ammo Reload' to refill an empty weapon slot.

During a wave, use a canteen charged with 'Instant Building Upgrade' to build a new sentry gun within 3 seconds of your previous sentry gun's destruction.

Use a canteen charged with 'Crit Boost' to destroy a giant robot.

Use a canteen charged with 'Teleport to Spawn' and then kill the bomb carrier within 5 seconds.

Use a canteen charged with 'ÜberCharge' to destroy 15 robots.

Kill 10 parachuting players.

Win 10 rounds playing PASS Time.

Reveal the mystery of the PASS Time TV Room.

Play a complete round with every class.

Play a complete game on 2Fort, Dustbowl, Granary, Gravel Pit, Hydro, and Well (CP).

Play in a game with 7 or more players from your Friends list.

Achieve 10 of the achievements in the Pyro pack.

Achieve 16 of the achievements in the Pyro pack.

Achieve 22 of the achievements in the Pyro pack.

Ignite an enemy, and the Medic healing him.

Ignite 3 Medics that are ready to deploy an ÜberCharge.

Ignite a rocket-jumping Soldier while he's in midair.

Ignite 10 Snipers while they are zoomed in.

Ignite 10 disguised Spies.

Ignite an enemy Spy while he's flicking a cigarette.

Kill 3 enemies in a row, all within the same area.

Ignite 10 enemies that have recently used a teleporter.

Do 1 million points of total fire damage.

Ignite 50 enemies capturing one of your control points.

Destroy 50 Engineer buildings.

Cause a dominated player to leave the server.

Kill an enemy in the same second that he kills you.

Force 10 burning enemies to jump into water.

Provide enemies with freezecam shots of each of your taunts.

Ignite 100 enemies with the flare gun.

Ignite a player that is being flipped by someone using the Flippin' Awesome taunt.

Ignite 3 enemy players using your Rainblower taunt.

Kill 6 people with your axe in one life.

Kill 3 people with your axe in one life.

Ignite 5 enemies carrying your intelligence.

Kill 50 enemies with your flamethrower, from behind.

Kill 500 enemies.

Kill 1000 enemies.

Kill 50 Heavies with your flamethrower.

Use your shotgun to finish off 20 players you've ignited.

Kill 15 players while you're dead.

Ignite 5 Spies who have a sapper on a friendly building.

Kill an enemy with a taunt.

Kill 3 enemies while they're taunting.

Kill a burning enemy who was ignited by another Pyro.

Kill 3 enemies in a single ÜberCharge.

Kill 10 enemies while you're both underwater.

Kill a Soldier with a reflected critical rocket.

Reflect 100 projectiles with your compressed air blast.

Ignite 10 cloaked Spies.

Have 2 enemy Scouts on fire at the same time.

Render a replay into a movie.

Spend some time editing a replay.

While watching a replay, press space bar to enter the editor.

Save your very first replay.

Achieve 100,000 YouTube™ views for your movie.

Achieve 100 YouTube™ views for your movie.

Achieve 1000 YouTube™ views for your movie.

Achieve 10,000 YouTube™ views for your movie.

Achieve 10 of the achievements in the Scout pack.

Achieve 16 of the achievements in the Scout pack.

Achieve 22 of the achievements in the Scout pack.

Kill 3 enemies while under the effects of a Medic's ÜberCharge.

While using the Back Scatter, kill 20 friends from behind.

While using the Back Scatter, kill a Heavy/Medic pair within 20 seconds of each other.

While using the Back Scatter, kill 20 spies from behind.

Block 50 point captures.

Capture the last point in a CP map.

Capture three capture points in a row in one life.

Steal and then capture the enemy intelligence without firing a shot.

Kill an opposing player that has your intelligence while holding theirs.

Destroy 3 enemy buildings while they are still under construction.

Destroy an active sentry gun using your pistol.

Destroy 3 teleporter entrances.

Dodge 1000 damage in a single life using your Bonk! Atomic Punch.

Kill 20 players while double-jumping.

Perform 1000 double jumps.

Start capping a capture point within a second of it becoming available.

Get the first kill in an Arena or Competitive match.

Kill 5 enemies with the First Blood crit buff in an Arena match.

Capture the enemy intelligence 25 times.

In a single life, kill an enemy while you are on the ground, in the air, and in the water.

Kill a Medic that is ready to deploy an ÜberCharge.

Kill 50 enemies from behind with the Force-A-Nature.

Kill a Scout while they are under the effect of Crit-a-Cola.

Kill or assist kill 50 enemies while they are stunned.

Cause an environmental death or suicide using the Force-A-Nature's knockback.

Get 2004 lifetime kills.

Run 25 kilometers.

Stun an enemy for the maximum possible duration by hitting them with a long-range ball.

Initiate 10 point captures that ultimately succeed.

Kill an enemy Heavy and take his Sandvich.

Stun 50 enemies while they are capturing a point or pushing the cart.

Cause an environmental death by stunning an enemy.

Stun a Scout with their own ball.

Stun 2 Medics that are ready to deploy an ÜberCharge.

Survive 500 damage in one life.

Bat an enemy 25 meters.

Capture the enemy intelligence 3 times in a single CTF round.

Kill a player in Well before the round starts.

Achieve 5 of the achievements in the Sniper pack.

Achieve 11 of the achievements in the Sniper pack.

Achieve 17 of the achievements in the Sniper pack.

Take down an intelligence carrier with a single arrow.

Kill a Heavy & Medic pair with the bow.

Kill an enemy with an arrow while you're dead.

Hit an enemy with 3 arrows, without killing them.

Pin an enemy Heavy to the wall via his head.

Capture the flag in CTF.

While using The Classic, gib all 9 classes during a single round.

While using The Classic, kill a rocket/grenade jumping enemy in midair with a full charge, no-scope headshot.

While using The Classic, kill 10 enemies with a full charge, no-scope headshot.

Destroy 3 Engineer sentry guns.

Dominate an enemy Sniper.

Provide an enemy with a freezecam shot of you doffing your hat.

Provide an enemy with a freezecam shot of you waving to them.

Get backstabbed 50 times.

Headshot an enemy Demoman.

Headshot an enemy player the moment his invulnerability wears off.

Headshot 10 enemy Snipers.

Score 5 assists with the Jarate in a single round.

Jarate an enemy that you're dominating.

Extinguish a burning teammate with your Jarate.

Jarate 4 enemy players with a single throw.

Jarate and then kill 3 enemies with your Kukri.

Jarate an enemy and the Medic healing him.

Use Jarate to reveal a cloaked Spy.

Kill an opponent within the first second of a round.

Kill a Medic that is ready to deploy an ÜberCharge.

Kill a spy whose backstab attempt was blocked by your Razorback.

Kill 1000 enemies.

Kill a fully invisible Spy in a single hit.

Kill a Scout in midair with your Sniper Rifle or the Huntsman.

In a single life, kill 3 enemies while they are achieving an objective.

Kill a rocket or grenade-jumping enemy in midair with your Sniper Rifle or the Huntsman.

Kill 10 Spies with your Kukri.

Get 5 kills with the Sniper Rifle without your scope.

In a single round, get a kill with 3 different weapons.

Kill 25 parachuting players with a critical headshot.

Get 3 kills with the Sniper Rifle without missing a shot.

Stab an enemy with an arrow.

Top the scoreboard 10 times on teams of 6 or more players.

Achieve 5 of the achievements in the Soldier pack.

Achieve 11 of the achievements in the Soldier pack.

Achieve 17 of the achievements in the Soldier pack.

Kill 3 people with the Air Strike during a single rocket jump.

Collect enough casualties to get the max clip for the Air Strike.

Assist a Medic in exploding 5 enemies with a single ÜberCharge.

Bounce an opponent into the air with a rocket and then kill them with the shotgun before they land.

Buff 5 steam friends at once with the Buff Banner.

Buff 15 teammates with the Buff Banner in a single life.

Get the highest possible rocket jump using jump and crouch.

Defend a cap point 30 times.

In a single life, kill 3 enemies who have damaged a Medic that is healing you.

Kill 5 Engineer sentries while you are standing outside of their range.

Destroy 10 sticky bombs with the shotgun in a single life.

Kill 10 enemies while assisting or being assisted by another Soldier.

Kill 3 players with the Equalizer in a single life without being healed.

Provide the enemy with a freezecam of you taunting over 3 of their body parts.

Provide the enemy with a freezecam of your 21 gun salute.

Gib 1000 people.

Kill an enemy soldier while both you and the target are airborne.

Kill 10 opponents who are airborne with the Direct Hit.

Kill 3 defenseless players after a single match has ended.

Kill 500 enemy Demomen

Kill an Engineer as he repairs his sentry gun while it's under enemy fire.

Kill 5 stunned players.

Kill 3 enemies with a single critical rocket.

Kill 20 enemies while you are on fire.

Kill a Pyro who has airblasted one of your rockets in the last 10 seconds.

Kill an enemy sniper with a rocket after he kills you.

Kill a Spy who just backstabbed a teammate.

Use a grenade to gib a player.

Kill 20 enemies from above.

Rocket jump and kill 2 enemies before you land.

Kill 20 enemies with your Equalizer while you have less than 25 health.

Finish a round as an MVP on a team of 6 or more players 10 times.

Kill your nemesis with a shovel.

Parachute 19.47 miles.

Kill 3 players during the same parachute deploy.

Kill a parachuting player while parachuting.

Ride the cart for 30 seconds.

While rocket jumping kill an enemy with the Equalizer before you land or just after landing.

Shoot two non-boosted crit rockets in a row.

Get 3 dominations in a single life.

Achieve 5 of the achievements in the Spy pack.

Achieve 11 of the achievements in the Spy pack.

Achieve 17 of the achievements in the Spy pack.

Kill 50 enemies with the Ambassador.

Headshot 3 Scouts with the Ambassador.

Headshot 20 Snipers with the Ambassador.

Backstab 50 enemies who are capturing control points.

Backstab a disguised Spy.

Backstab the enemy that you're currently disguised as.

Backstab an enemy who is dominating 3 or more of your teammates.

Backstab an enemy, who then switches to Pyro before they respawn.

Backstab an Engineer, then sap 3 of his buildings within 10 seconds.

Backstab your Steam Community friends 10 times.

Backstab 1000 enemies.

Backstab a Medic that is ready to deploy an ÜberCharge.

Backstab a Medic who has healed you in the last 5 seconds.

Backstab an enemy and the Medic healing him within 10 seconds of each other.

Backstab 3 enemies within 10 seconds.

Backstab 3 Snipers in a single life.

Kill a Sniper after your backstab breaks his Razorback.

While cloaked, bump into an enemy cloaked Spy.

While using the Cloak and Dagger, kill the same enemy 3 times, all within the same area in a single life.

Dominate a Sniper.

Start capping a capture point within a second of it becoming available.

Kill an enemy who triggered your feign death in the last 20 seconds.

Provide an enemy with a freezecam shot of you flicking a cigarette onto their corpse.

Backstab a Scout that is using the Back Scatter.

Kill 15 enemies who are standing on a control point they own.

Kill a gun-wielding Spy with your knife.

Kill an Engineer who is working on a sentry gun.

Stab an enemy to death while under the influence of Jarate.

Kill an enemy while you're being healed by an enemy Medic.

Get a Revenge kill with a backstab.

Destroy 1000 Engineer buildings with sappers.

Sap an enemy sentry gun within 3 seconds of a teammate sapping another.

Sap an enemy building, then backstab the Engineer who built it within 5 seconds.

Survive 30 seconds after being ignited while cloaked.

Stab an enemy while fencing.

Kill 3 players who are doing the Conga within 5 seconds.

Do the Conga with 10 or more players at the same time.

Melee kill 10 players while they are doing the Square Dance taunt.

Lose at Rock, Paper, Scissors 3 times in a row with Rock.

Win at Rock, Paper, Scissors 3 times in a row with Scissors.

Do 10 partner taunts with a teammate while capturing a control point.

Have 6 teammates using Pyrovision at the same time.

Win 2Fort with a shutout.

Successfully defend Dustbowl without giving up a capture.

Successfully defend Gravel Pit without giving up a capture.

Win Hydro without giving up a capture.

Win 20 games.

Win Well in 5 minutes or less.