Here is the full list of all 47 Revelations 2012 achievements.
Finding all crystals.
Survive during all Boss Fights
Don't let Ixtab uppercut you.
Kill all minions with each crystal.
Get off the boat during the ride.
Kill every minion using only the blade of the weapon.
Kill a Priestess using only the blade of the weapon.
Survive the Winds of Destruction campaign.
Go through a level without taking any friendly fire.
Kill a Warrior using only the blade of the weapon.
Out run the steamroller.
Help teammate up from being incapped.
Kill a Priestess before she casts.
Make 1,000 headshot kills.
Kill 10,000 minions with the laser.
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.
Kill a Priestess in the air.
Go through a level without taking any damage.
Solve 2012 puzzles.
Kill a Vixen after her cycle is complete.
Go through a level causing no friendly fire.
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 Demonoid using only the blade of the weapon.
Kill a Vixen using only the blade of the weapon.
Don't get sucked into IK's black hole.
Don't get hit by the tornadoes.
Jump over Kukulkan's tail swipe everytime.
Find all the God glyphs.
Make it through the rolling rocks.
Shoot all the good pots without shooting the bad pots.
Take no damage through ballcourt.
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.