Is there some sort of legend about occult anthrax that I'm not aware of? The text implies that it's unusual to encounter anthrax that's "alive," when it's been developed as a bioweapon in reality. It feels like FIST is supposed to expect people with tentacles, especially with the Anomoly Hunter wanting a head for his wall, but when someone says anthrax to me, that's not exactly what I think of. Is there something I'm missing here?
That said, the adventure is otherwise clear and wonderfully succinct. It's pretty clear from the outset how it should be run.