In truth, this company, the boyz who saved him had become a sort of retinue for him. They were trustworthy, a trait not shared by a great many Orks.
By the time the group boarded the Imperial vessel, the initial thrust had already broken through the defense. Bodies and murky fluids coated the floor. From these points Orks worked fore and aft in a long and bloody battle to gain control for the whole ship.