Actually I said barerock so many times I got tired of it and just said moon. Also when I say moon I'm actually being quite literal, I've seen pictures of WWI no man's lands and that doesn't look like the land was blasted down to bare rock and dust, it doesn't look like the moon, just a bloody battlefield.
Also the Galactic War Report didn't mention how many commanders there were but this battle encompassed an entire galactic sector, specifically the Malfest sector, so possibly hundreds of commanders but probably not hundreds of commanders per world.
Reducing entire planets to bedrock and dust in a week or possibly less is a bit more impressive than WWI artillery, a WWI no man's land just isn't in the same scale, especially since in TA producing anti-matter and strategic scale nuclear weapons is trivial. You can say maybe they meant something resembling a no man's land but really if I wrote a story and said the entire earth was blasted down to barerock and dust in a week are you really going to imagine a WWI no man's land or are you going to imagine something resembling Mars?
What I imagine is actually dependent on what the story has previously demonstrated. Since TA has demonstrated not-nuclear scale firepower in regular units and only has nuclear firepower with nuclear weapons I'd imagine something more like a Fallout style wasteland. Which is like Mars only in so much that they're both deserts, but with a loose enough interpretation can be described as "bare rock, dust and battle ruins" what with all the massive deforestation and sand and everything. Of course that is not the literal interpretation I guess you would take.
As for that castle, that castle is obviously not a medieval style castle the sheer size of the castle is surprising even to the commanders present. It's "stone" walls can withstand blasts from 10,000,000 degree plasma and hyper-focused weapons fire, and during the castle assault they mention ARM and CORE units fighting each other and blindling blasts of light coming from the horizon due to anti-matter weapons fire. Anyway it really doesn't matter how strong the individual units are its not like the Necrons are going up against a single Peewee or Annihilator. One problem I see with the Necrons is time, they don't seem like the type that will respond immediately to threats
A really big stone castle is still a stone castle, there are quite a few large stone structures on Earth so it's not unreasonable someone somewhere decided to build a castle crazy big out of regular stone. You're also doing the thing where you use techno-babble and expect it automatically translate into high-power again. Besides if this castle is so freaking huge and made of stone it would need
very thick walls for structural support which would add lots of resistance to weapons fire by its very nature. Also anti-matter/matter reactions release a lot of gamma rays which will be absorbed by the atmosphere and re-released as visible light, so any anti-matter explosion will release a blinding flash of some size.
For the Necrons response time it really depends on the Tomb World and how functional it is.
And the aspect ratio problem, yes I know its not likely to blast thin long holes (13kmx9mm) into armor like what the website calculated without some specific labratory like conditions, what I was trying to point out is that, Peewees definitely have at least anti-tank firepower blasting open a 40k tank with their rapid firing guns should be quite trivial with a weapon that highly focused and yet they can tank a few shots from their own guns as well.
My problem was never with a Peewee having anti-tank firepower, it was with the absurdly long thin holes. It seems we were talking past each other.
And a single commander can be a big threat to an entire galaxy in TA the Core essentially get destroyed by the ARM but from a single commander they were able to rebuild their forces into a potent fighting force, which threatened to wipe out the ARM.
That's in the TA universe where they have the galactic gate network to move the Commander around. The commander in this scenario is limited to what he can build himself.
Also so far there has still been no quote showing the supposed complete rebuilding of a new body for a Necron in case of total bodily destruction.
I couldn't find any thing about building a new body for Necrons in the codex despite my earlier recollection at this time, I'll give it a more thorough read later but I did find these.
p.33 Codex:Necrons wrote:
Even dismemberment or decapitation cannot be counted upon to stay a Necron Warrior's advance, for its sophisticated self-repair mechanisms can return it to the fray within minutes.
p.45 Codex:Necrons wrote:
Canoptek Scarabs are constructs, designed to break down organic and non-organic matter into raw energy. This harvested energy can then be woven into fresh forms at the direction of the Scarab's controller.