Warhammer 40,000: Spearhead

Spearhead is a new way to play Warhammer 40,000 that enables you to unleash exciting tank battles and daring breakthrough missions on the tabletop, bringing the full mechanised fury of the 41st Millennium to bear in your games. June's White Dwarf will contain the main part of the supplement, including new rules and missions.
(from publisher)
Spearhead will make use of forces totally consisting of vechiles or monstrous creatures (in the case of the Tyranid and Daemon armies). This radical change from established Warhammer 40,00 will involve necessary changes to many core aspects of the rules system, most notably deployment of forces.