Editing Hephaestus-IV (section)

===Space Marines===
Hephaestus-IV maintains a good relationship with several Space Marine chapters, among them being the Iron Hands of Medusa and the Fleet-bound chapter of the Dark Angels and has offered training to several of their techmarines, some have accepted.
There is enmity between themselves and the more pious chapters such as the Black Templars and the Red Scorpions for much the same reasons as the Ecclesiarchy who see them as prideful and arrogant. 
The priests of Hephaestus-IV have since established a mutual benefit alliance with the Conservators chapter of Space Marines, a chapter long shunned by the Adeptus Mechanicus. Doing so is not out of defiance of Mars but the need for warriors at the Eye.