Call of Duty: Modern Warfare 3 and Warhammer 40,000 Collaboration Leaked

Dataminers discover artwork hinting at potential inclusion of Dark Angels and Sisters of Battle from Warhammer 40,000 universe.

Dataminers have discovered potential collaboration between Call of Duty: Modern Warfare 3 and Warhammer 40,000, featuring characters from the latter's universe.
The collaboration may allow players to step into the roles of Dark Angels Space Marine or an Adepta Sororitas, also known as a Sister of Battle.
Artwork related to the collaboration has been found in the game's data, featuring the Dark Angels and the Sisters of Battle, two popular factions from Warhammer 40,000.
The Dark Angels are currently in the narrative spotlight in the Warhammer 40,000 universe, with their primarch Lion El’Jonson returning from a 10,000 year long slumber.
The exact form of the collaboration is yet to be confirmed, but it may include new Operators, event modes, and potentially iconic Warhammer 40,000 weaponry.