Planetary Onslaught

The 112-page hardback supplement Planetary Onslaught brings together and updates the rules for 3 Warhammer 40,000 expansions - Planetstrike, Stronghold Assault and Cities of Death - and presents them as stages of planetary conquest. Play them individually, or string the three different sets of rules together to create an epic campaign that tells the story of the fate of an entire world! One player assumes the role of aggressor, and the other defender, playing through the three phases with additional rules tying the whole campaign together into a single, brutal Planetary Onslaught.
There's also a huge array of updated datasheets for Fortifications and Fortification Networks, new Siege War missions, and full campaign trees for Planetstrike, Stronghold Assault and Cities of Death games.