With so many unique factions in the Warhammer 40,000 universe, not all of them are as easily recognizable as the iconic bright blue Ultramarines. While the story follows Titus and his Ultramarine squadron, Warhammer 40,000: Space Marine 2 pays homage to many of the other fan-favorite Space Marine legions with references to armor customization. Despite this, the very first faction seen in the game isn’t the classic blue Ultramarine, but a squad of Deathwatch Marines on a vital mission.