First Phase of Invasion Done

After Arcturus killed the Ork Nob, who was in charge of not only the entire Space Hulk but the entire battle formation of the Greenskins, the effect was almost immediate. Not even a few moments later, various battle groups of the Orkish spaceships started acting weirdly, and practically every Ork who was in charge there was doing what he wished. 

Without someone who would command them, there was no one to hold the reigns, thus the chain of command collapsed and now, the Orks were either attacking in a frenzy the Imperial Forces, some of the more intelligent Greenskin commanders, or lesser Nobz in charge of the battle groups even started retreated according to the reports of the Red Queen. 

However, it was clear that this sector of battle was finished because, without someone to issue commands, the Orks didn't have respect for each other to the point of even basic cooperation.