Space Hulk: Ascension - Dark Angels Chapter

The Dark Angels!

This expansion also adds a new campaign playable for all existing chapters.

• Playable Dark Angels Chapter
• Plasma Cannon weapon option
• Exclusive Apothecary class
• 3 new psychic spells
• Bringer of Sorrow Campaign with 20 New Story Missions and 20 Flash Missions

Source:

Steam Store Description