The revised edition of the first Doomsday Alternate Reality Game corrects the problem with the word beasts. The word has been changed to beast. Consider this a rewrite. The original is still available to play.
http://www.mediafire.com/download/hcn1mg56z38ad43/doomsdayspiritualwarfarethroughouttheendoftheagerevisededition.zip
http://www.mediafire.com/download/hcn1mg56z38ad43/doomsdayspiritualwarfarethroughouttheendoftheagerevisededition.zip