An expansion to Warhammer: Mark of Chaos for the PC, Warhammer: Mark of Chaos - Battle March builds upon the game ' s tactical foundation to offer new units for each army as well as an original campaign and new online modes. Players will be able to experience the mysterious sorcery of the Dark Elves and the savage brutality of the Orcs and Goblins in an all-new chapter of the game ' s single player campaign as they battle to overcome an invasion by the armies of Chaos.