We are back with Boarding Actions as we dive deep into the under ground tunnels of this Hive City. A sinister dark apostle has formed an under deck uprising which threatens to sabotage the plasma reactors unleashing devastation! To halt this threat and put down these wretched traitors, the Astra Militarum's Finest - the Tempestus Scions, breach the complex to administer justice. Will the combined might of the Imperial Guard stop this Chaos Space Marine insurrection, or will they be too late to halt annihilation?