Dominus?Edit
Is there actually a source somewhere for Calus being called "Dominus Calus"? After reading the Cabal Booklet I've begun to doubt that Calus used the title, since Calus only refers to himself as Emperor and uses Dominus to refer to Ghaul. A Google search doesn't turn up anything. MorningWalker (talk) 17:41, 2 September 2017 (EDT)
Your right. Emperor Calus would be the correct name. 
Arcmind Execute long hold for reactivation. 
AI-COM/ACMD SIGNOFF 18:01, 2 September 2017 (EDT)
Emperor Calus Still Alive??Edit
Considering we only caught a robot form, could Emperor Calus still be alive??? -- Titan66 (talk) 20:38, 13 September 2017 (EDT)
It's a high probability Titan66. After all, we were called back to the Leviathan to fight Argos and why would Calus risk himself just to do battle with the Guardians. ---Virgil the Ghost (Talk)
Only a Robot?Edit
What if Calus was just a robot and never actually existed? Like, he's only seen as a robot. What if Calus was like Osiris for the Cult of Osiris as they just "believe" in Osiris and don't think about who he ACTUALLY was. And The Consul was sick of this blind belief and tried to get rid of this belief but was exiled when he was dethroned and the Loyalists threw all of his riches into the crowd and the Loyalists said that it was the doing of Calus. Explaining the Midnight Coup was that Consul simply got rid of them all via the Coup. If there's any more thing you want "explained" with this theory just ask me. ---Virgil the Ghost (Talk)
Should the gameplay section really be here?Edit
This article focuses on the character of Calus, not the Leviathan (raid). It descibes mechanics of the Leviathan's final encounter, as well as different gameplay based on difficulty. Fraq (talk) 20:11, 9 May 2021 (BST)