As a Mettalica nerd I can confirm indeande's comment. One was not based on Johny Got His Gun, but the video was.
Additionally, though I don't know if you would consider this literature, their song Creeping Death is based on the 10th plage of Egypt from the book of Exodus.
Additionally, though I don't know if you would consider this literature, their song Creeping Death is based on the 10th plage of Egypt from the book of Exodus.