I just want to remind everybody of this book, which is made of more win than natural child of Chuck Norris and Sebastian Yarrick. IA9 is absolute must-read for any SM fan and still a good thing for anybody else.
Describing the events of infamous Badab rebellion, it shows us possibly the greatest insight into Astartes psychology, art of waging war, conflicts and misunderstandings with common humans and differencies between various Chapters ever. And in bring us descriptions of several less-known Chapters, their history, psychology, traditions, famous campaigns and it shows, that not only SW, BA and BT are quite divergent from codex. Converting them into Deathwatch RPG would be possibly beyond awesome.
There are heroic but arogant Astral Claws (and as little spoiler, their relatives Tiger Claws). quarrelsome, genocidal and furious Fire Hawks, masters of the void and void combat, the Marines Errant, pure and proud Red Scorpions, young rising star of astartes, the Fire Angels, grim and stealthy Raptors, cursed Lamenters, codex-adhering Novamarines, dedicated and honourable Howling Griffons...
...and more to come in IA10. Repeating myself, this book is recomended for all Deathwatch gamers, SM fans and backround-addicts.