Here is the full list of all 47 Revelations 2012 achievements.
Make 1,000 headshot kills.
Kill 10,000 minions with the laser.
Survive the Winds of Destruction campaign.
Survive the Feast of the Serpentine campaign.
Survive the Suicidal Actions campaign.
Survive the Winds of Destruction campaign on expert.
Survive the Feast of the Serpentine campaign on expert.
Survive the Suicidal Actions campaign on expert.
Survive during all Boss Fights
Kill a Priestess in the air.
Go through a level without taking any damage.
Solve 2012 puzzles.
Kill all minions with each crystal.
Finding all crystals.
Kill a Vixen after her cycle is complete.
Go through a level causing no friendly fire.
Go through a level without taking any friendly fire.
Kill a Priestess before she casts.
Complete a level in a certain amount of time.
Defeat all levels.
Beat all levels without dying.
Survive a level without being incapacitated.
Use no crystals to complete a level.
Complete a level without collecting any hearts.
Collect all Skulls.
Kill 100 minions while on top of the tallest building.
Kill a Warrior using only the blade of the weapon.
Kill a Demonoid using only the blade of the weapon.
Kill a Priestess using only the blade of the weapon.
Kill a Vixen using only the blade of the weapon.
Kill every minion using only the blade of the weapon.
Don't get sucked into IK's black hole.
Don't get hit by the tornadoes.
Don't let Ixtab uppercut you.
Jump over Kukulkan's tail swipe everytime.
Help teammate up from being incapped.
Find all the God glyphs.
Out run the steamroller.
Make it through the rolling rocks.
Shoot all the good pots without shooting the bad pots.
Take no damage through ballcourt.
Get off the boat during the ride.
Rescue 200 teammates from rescue building.
Helping 500 teammates up.
Find the glyph that represents God of the Wind, Divine Breath.
Find the glyph that represents the Feathered Serpent.
Find the glyph that represents Goddess of the noose.