Looks like Space Marine 2 will continue the first game's grand tradition of PvP multiplayer
A video uploaded to YouTube by prdalien0 showing a flick-through of The Art and Making of Warhammer 40,000: Space Marine 2 seems to have confirmed Saber Interactive's sequel will have a PvP mode. A two-page spread shows the armor of Chaos Space Marines who will apparently be playable in the mode, from the chapters of the Death Guard, Black Legion, Iron Warriors, Night Lords, Alpha Legion, and World Eaters.