So with more Doom The Dark Ages material coming out, will the Cosmic Realms play a role in this story in future?

Hope that Slayer won't accept a deal from Alaya. This warp construct is nothing but problem, that's why I treat Nasuverse as a prohibited territory for Time Lords, because this verse should, from POV of normal person with common sense, cease and desist.
Also, congrats for having a TvTropes page (and a page to your Ben10/Fate crossover).

Savi- Savior? Oh, no no no no... He's your boss, Alaya. He's not a Human. In the most Literal sense. I don't know how you replicated him, but one thing is for certain, he won't be contained for long.

"Prepare for unforeseen consequences"
G man

"It's only a matter of 'horse'(?) until the slayer faces his test"

I think you mean 'matter of time' here

very cute doom and scathacth

Great entry on how this was done. Keep up the good work.

Ngl this has good revamped plot, but just plain bad writing style. The bones of a solid story are there, but it's hard to read through it, and the Slayer is OOC when it comes to him speaking.

I won't lie, I really hope he gets some human body sometime. Seriously he's living
He's a living demigod and not in the throne of heroes. He should be a Master if anything. Maybe he can wish upon the grail...?

Of course, more hellwank alongside Slayerwank, of course one of the most evil servants is nothing compared to Doom Hell, as if the demons actually had an advantage other than numbers.

Alaya doesn't really have a personality.

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Man this was pretty fun and can't wait for more when possible.

Doomslayer and Archetype: Earth interacting, That would be a sight to see. As for Alaya, Would Doomguy be strong enough to become Archetype: Humanity?

the avengers transported to the gears of war series crossovers I hope you like this idea.