There is a new DLC available for Warhammer 40,000: Inquisitor - Martyr, and its title is Faith Undone.
Another wave of seditionist ideas has infected an Imperial world. Fortunately the agents of the Holy Ordos have discovered the trouble before it could spread too far. There is still time to weed out the ringleaders.
This DLC contains a special Priority Assignment. An investigation consists of a short story and a series of new missions. Upon completing the Assignment you will be rewarded with a unique cosmetic item: the Arctic Footprint. (Please note that this assignment is only available after unlocking the Triglav Subsector.)
The DLC can be purchased on Steam or the Neocore Store, this way it costs $2.99. Alternatively, you can buy in the in-game store for 1200 Fate. (As usual, this DLC will come to consoles on a later date, and is included in the Season Pass.)