All campaigns can be played as both Loyalist and Traitor.
6 Mission Apocalypse Campaign
In the wake of the death and destruction wrought upon Tallarn by the virus bombing, the Iron Warriors descended. As their patrols scoured the ruined planet’s surface, they encountered unexpected resistance from the Imperial survivors. Protected from Tallarn’s toxified atmosphere in their underground shelters, the loyalists launched a spirited campaign of hit-and-run attacks on the Iron Warriors.
6 Mission Resurrection Campaign
As the Imperium learned of the Iron Warriors’ treachery and the fate of the survivors of Tallarn, their relief troops and armour arrived in force, only to be matched by those of the enemy. The Iron Warriors ground their way to Sapphire City, beneath which lay a subterranean network of tunnels and shelters which had served as a bulwark in the Imperial defence line.
6 Mission Revenge Campaign
Despite determined efforts, the Imperium were unable to shift the Iron Warriors from The Sightless Warren. Meanwhile fighting on the surface ground to a stalemate as heavy armoured units reinforced both sides. In a bid to sway the battle, The Iron Warriors’ Macro-Transport “The Eagle’s Talon” was brought into orbit around Tallarn, threateningly positioned to bring a new wave of troops to fight for the traitors.
66 different units accurately recreated
54 different weapons
Three campaigns, each of six linked missions
Four battle packs, each with six standalone missions
An eight mission tutorial campaign
Play all missions, other than the Tutorial, as either Imperial or Traitor forces
Tailor your army with custom force selection
Fight on the devastated surface of Tallarn or for control of the vast underground bunker system
8 unique unit types
Aircraft
Flyers
Infantry
Tanks
Walkers
Super Heavy Walkers
Super Heavy Tanks
Titans
Future updates will add more missions and many more units

The Horus Heresy: Battle of Tallarn – Iron Edition