Beasts of Chaos (Warhammer Army - initial impressions)

The interesting and, I believe, unique attribute of chaos armies is that you can select them from both Hordes of Chaos and Beasts of Chaos. There are restrictions though which, on a quick browse of the Beasts book, appear to relate to which general you choose. The type of general, beast human or daemon, determines the composition of your forces by limiting special unit choices.

As a result of finding this out, I am postponing my Chaos Armies analysis until I have purchased the Hordes of Chaos book (probably next week)