>>96794949
Next we see the galaxy map in this area reveal the nearby forces for Ferrus to command. And then the 'loyal' primarchs engage in astropathic messaging.
Lorgar is first to message Ferrus and agrees they must attack as quickly as possible. Ferrus asks Alpharius if he has elements within the traitor legions to which he gets a reply that they have all been 'rooted out'.
Corax messages Ferrus that he desperately needs to have a talk with him before they commit to anything. Next Perturabo messages that he is ready to comply with all orders. Lorgar again messages that they can't show restraint and must kill everyone on Isstvan V.

Next Alpharius (maybe) messages Corax that Horus is baiting their attack and he recommends that they instead blockade and siege Isstvan V. He knows Corax is closer to Ferrus than him so he asks him to please get Ferrus to stop his rash attack.

Following that Alpharius (maybe) messages Ferrus directly telling him that the plan for the direct assault is a terrible idea and he instead recommends blockading and sieging Isstvan V. He tells Ferrus that if they kill Horus it could make him a martyr and lead to further rebellion. Ferrus won't listen, he replies that the direct assault will happen.

Corax tries to message Vulkan as he believes he could calm Ferrus somewhat but he can't get a message through to him.
Corax tells Alpharius that he can't get a message to Vulkan and asks him if something has befallen Vulkan to which Alpharius tells him that he has heard nothing.
Then Corax messages Ferrus asking Vulkan is.

Finally the delayed message Vulkan sent earlier is received but the plan is already set and Ferrus won't deviate. Vulkan tries to tell him that even though they are traitors they are still their brothers and Vulkan can't forget that so quickly. Ferrus simply replies he is glad to have Vulkan by his side.