Here is the full list of all 25 Blair Witch achievements.
Help Ellis to get his redemption.
End the game without killing any monsters
Collect all wooden dolls.
Collect all victim's photos.
Collect all of the psychiatrist's notes.
Pick up all the trash.
Let the VA know about the lumberjack's death.
Find out what happened to Peter.
Let Bullet bring you 10 things
Make the pizza guy lose it.
Score 40 points in Cobra.
Become Carver
Find out what happened to Bullet.
Break 10 totems.
Patch things up with Jess.
Collect all dog tags of the fallen comrades.
Kill 10 monsters.
Walk 100 miles...
Collect the first dog tag.
Collect the first psychiatrist's note.
Pay your respects to sheriff Lanning.
Kill your first monster.
Collect the first wooden doll.
Pet the dog
Collect the first victim's photo.