So in Night ' s Black Agents you play burnt spies tracking down the Vampire Conspiracy before they bite you in the neck . The game ' s investigative , uses the Gumshoe system , but has some pretty solid combat options for a Gumshoe game mostly in Double Tap , the add on book . The default mode is action spy thriller ala Bourne , but there are different Modes of play , and one of them is a darker , LeCarreesque world where trust is an issue , so there ' s a trust betrayal mechanic you can use to help or hinder your fellows . In NBA you don ' t necessarily need to come from the same background , but if you ' ve read enough spy fiction you ' ll know that two oxford boys who went through school the same year can end up on different sides of the game . I would also add that NBA has some prep required up front to establish a clue trail , and the steps on your Conspyramid literally an orgchart for your baddies , but it can certainly be run in a lowprep fashion .