The mission is a daunting one. Fortunately there are those who have gone before. They have provided 90s investigator characters with valuable new spells, skills, and weapons. Thanks to them we can now use Uzis and 9 mm Glocks against the Fungi from Yuggoth and the Dark Young of Shub-Niggurath. This mammoth work takes the player out of the 1920s horror and sets them in the X- Files world of today.
Characters are no longer lone individuals battling a unknown superior horror.
They work for the government. Characters are part of an outlawed secret organization within the US government called Delta Green, and are dedicated to gathering information on UFOs and other mythos-related events. Anyone who ever needed to know what the US Marshals' jurisdiction is, Delta Green is for you. It gives information on the structure and history of every branch of the US government concerned with law enforcement. And if you can't find what you're looking for there, check out the annotated bibliography.