Editing Space Sharks (section)

====World Eaters====
Yet another possibility maybe [[World Eaters]], since Space Sharks are silent and brooding outside of battle but go absolutely batshit crazy when ''in'' battle, no questions asked, and they seem to have a preference for chain-axes, which is somewhat unusual among Loyalist Space Marines. The love of chain weapons is carried over in a few other ways; one marine has what can only be described as a chain-club / staff - with an enormous flat chain blade running up one edge and handles on the opposite side at either end (potentially doubling as a very heavy duty eviscerator). Their predilection for close-combat and bloody melee, to an even greater degree than the Space Wolves, would be in keeping with the attitudes of the World Eaters and the War Hounds. Like the World Eaters, the Space Sharks have a preference for Drop Pod assaults, fast vehicles like Land Speeders, and Assault Terminators, and it can be argued that Tyberos's Terminator bodyguards, the ''Red Brethren'', are reminiscent of Angron's own Terminator posse, the ''Devourers''. Some of their ships also possess Ursus Claws, which only World Eaters used (but then again, it could just be a salvaged ship).

The main problem with this theory is the Butcher's Nails. We can assume one of two things when it comes to the Nails:
#The Space Sharks learned to control their urges outside of battle, lest they snap and massacre each other since they're out in the void of space for long periods of time doing nothing (though they spent most of the time spent traveling in cryo-sleep/stasis).
#Or they could have simply phased them out of their recruitment process after the Horus Heresy, seeing as it drove the other World Eaters fucking bonkers and was detrimental in the long run.

And whilst there were very few loyalist Night Lords (only two examples in the canon thus far), there are canonically loyalist World Eaters, both at Istvaan III and scattered around the Imperium during the Heresy.