The Fangs of Morkai are a space wolf successor founded from survivors of a small SW fleet that got trapped in the warp for 8 millennia following the burning of prospero. They were lead out of the warp by the death wolf Morkai (or that’s what it appeared to the chapter as) and so they venerate Morkai above all other fenrisian gods
The most devoted worshippers of Morkai form the death howl squads (if anyone has a better name, I’m taking suggestions) of which there are two paths, the paths of Iron and Fire. The path of fire use relic volkite weapons and rad grenades to brutally purge enemies with the most destructive weapons available.
The path of iron utilize brutal chain weapons and phospex grenades to viciously kill their enemies and send them to Morkai.