I've been listening to, and very much enjoying, the "God's Teeth" Delta Green campaign. So much so that while I was haunting my Friendly Neighborhood Game Store this evening, I picked up a copy of DG:AH and leafed through it. It looks interesting, and I'm tempted to buy it.
Except...there's not a word about Mythos Things Man Was Not Meant To Know (tm) in it. No real adventure design or Gming advice.
I was under the impression (enhanced by the book itself, which bears the legend A Role-Playing Game of Lovecraftian Horror and Conspiracy) that this was a complete game. Apparently, I was mistaken, and it's only a sourcebook. Which is a little disappointing. It means I have to buy TWO Delta Green books. Curse you, Arc Dreams! <shakes fist futilely at the heavens>