Here is the full list of all 22 Call of Cthulhu: The Wasted Land achievements.
Complete 'Basic Training' to gain this achievement.
Complete mission 'The Battle of Pudding Lane' to gain this achievement.
Complete 'The Battle of Pudding Lane' with a score of 1100 or more.
Complete mission 'The Raid' to gain this achievement.
Complete 'The Raid' with a score of 1100 or more.
Complete mission 'The Many Voices' to gain this achievement.
Complete 'The Many Voices' with a score of 1100 or more.
Complete mission 'Burying the Dead' to gain this achievement.
Complete 'Burying the Dead' with a score of 1100 or more.
Complete Mission 'Death by Gas' to gain this achievement.
Complete 'Death by Gas' with a score of 1100 or more.
Complete mission 'The Fire Speaks' to gain this achievement.
Complete 'The Fire Speaks' with a score of 1100 or more.
Complete mission 'Chess with the Dead' to gain this achievement.
Complete 'Chess with the Dead' with a score of 1100 or more.
Complete mission 'The Thunder Speaks' to gain this achievement.
Complete 'The Thunder Speaks' with a score of 1100 or more.
Complete Mission 'Not Dead But Dreaming' to gain this achievement.
Complete 'Not Dead But Dreaming' with a score of 1100 or more.
Complete campaign (all missions) on Hard difficulty.
Kill 25 Reanimates.
Kill 50 Reanimates.