inside look at Honor The Chapter, a forthcoming supplement for Deathwatch which gives support for players wishing to portray characters from second or subsequent founding Chapters in the Deathwatch RPG.
Furthermore, there is a downloadable preview of Tempest Blades, which is the name that the Storm Wardens (everyone's favorite Scottish Space Marines!) give to special bands of dueling heroes within the first company. There are also some Chapter specific pasts and oaths.
I have not played a ton of Deathwatch recently, but this all looks pretty promising.