This idea comes from 'Dark Events' in XCOM 2.
Basically, there are set-points in the story. I call them 'plot plots' when the party hits a certain checkpoint in the investigation. I then roll a test for them and based on their score, I award a random card from one of the two sets if they pass or fail. I didn't create this idea. I know the DnD people do something similar.
Dark Heresy Dark Event Cards.
Full download link.
http://www.filedropper.com/set17
Also, if you guys got ideas for new cards let me know. This set is based on Desolation of the Dead. Dark Heresy 2E.
Edited by fog1234