The Heavy Update Title update for Team Fortress 2 has 38 achievements.
While invulnerable and on defense, block an invulnerable enemy Heavy's movement.
Get 1000 assists.
Kill 50 enemies while both you and your victim are underwater.
Kill 10 Heavies with The K.G.B.
Eat 100 sandviches.
Kill 50 enemies within 3 seconds of them attacking your Medic.
Remove 20 stickybombs by killing the Demomen who produced them.
Kill 10 enemies carrying your intelligence.
Kill an enemy with a taunt.
Heal 1000 damage with med-kits in a single life.
Kill or assist in killing 10 cloaked Spies.
Kill 20 enemies while being recharged by a dispenser.
Get 50 caps on payload maps.
Block the enemy from moving the payload cart 25 times.
Get ÜberCharged 50 times.
Achieve 22 of the achievements in the Heavy pack.
Provide an enemy with a freezecam shot of you taunting while invulnerable.
Kill 50 Scouts using Natascha.
Work with a friendly Medic to kill an enemy Heavy & Medic pair.
Kill 25 enemies while you're standing on a control point you own.
Get 25 enemy kills where you either assist or are assisted by another Heavy.
Achieve 16 of the achievements in the Heavy pack.
Help 5 teammates get revenge on their nemeses.
Kill 10 enemies with a Medic assisting you, where neither of you die.
Kill 15 enemies capturing a control point you own.
Get 20 kills on players that you're dominating.
Kill 5 enemies without spinning down your gun.
Achieve 10 of the achievements in the Heavy pack.
Take 1000 points of damage in a single life.
Earn a domination for a Medic who's healing you.
In a single life, get shot, burned, bludgeoned, and receive explosive damage.
Survive a direct hit from a critical rocket.
Fire $200,000 worth of minigun rounds in a single life.
Kill an enemy with a critical punch.
Kill an enemy with your shotgun while you're out of minigun ammo.
Be the first on your team to start capturing a control point in a round.
Kill 10 enemies in mid-air with the minigun.
Kill an enemy in the first 5 seconds after you exit a teleporter.