Maybe Deac doesn't want you to play a bad guy in Resistance? ^.^
"well, this evil near-all-powerful super-being would want a smaller galaxy to god over the a large one
This "near-all-powerful super-being" isn't a new character to be invented like this. He already has established actions, motives and purposes. Plus I don't understand what you were trying to say
"so w/o revenant to do something, holocuast would still happen, but if revenant did this thing, the holocaust wouldnt have happened"
You're wrong. Reread Cantina 7 to understand what the Revenant is. Deac was killed, and the cyborg half of his body regenerated and waited four thousand years to stop Ken'atra. It is running a "Revenant" program; "Revenant" means someone who returns after death.
THE REVENANT DID NOT CAUSE THE HOLOCAUST. NOR DID IT HAVE ANYTHING TO DO WITH ANY OF THE CIRCUMSTANCES SURROUNDING THE HOLOCAUST.
Understand that, please. Also understand that Ken'atra was trying to prevent the Holocaust, just going about it all wrong - by attempting to screw up history enough so that it wouldn't happen. He would have succeeded (without our interference), but only made the galaxy a far worse place.
The only way for Irvine to believe that the Revenant caused the Holocaust is if he's been lied to.
The motive I can see now is ...well my post in C7 should imply it.