A useful addition to the series allowing me to include large scale combat without detracting from the pivotal role of the players. My only criticism is the same as with all the achtung books , there isn't a sample quick run scenario. As a long time player of CoC, changing the pace to a more combat rather than research oriented system took a while and although pre made scenarios are available, I would never actually use them preferring to write my own stories. Having an example however would be helpful to give a flavour of how to write and run the game.