Does what it says on the tin. Expect a series of Adepta Sororitas related classes to follow, along with a section on Acts of Faith once completed.
Specialisms
Basic
Battle Sister
Dominion
Retributor
Superior
Operator
Seraphim
Support
Repentia
Hospitalier
Ministorum Priest
Hereticus Acolyte
Penitent Witch
Crusader
Death-Cult Assassin
Advanced
Incinerant Priest
Rector Erudite
Pracentor of Penance
Prelate At Arms
Palatine
Confessor (Maybe)
Comrades
Sisters of Battle characters may be accompanied by Frateris Militia retainers or Neophyte Sisters who have yet to earn their helmets as comrades. Comrades function as normal otherwise.
Priest classes as Only War baselines, however, add the Faith aptitude.
The Faith aptitude can be used in place of the Psyker aptitude for increasing Willpower, and will be instrumental in the purchasing of Acts of Faith.
Fate
Adepta Sororitas characters use the Deathwatch Fate table for generating fate points at character creation.