Unless the dreadnaught works the same way as a Halo then I highly doubt it. I haven't brushed up on my halo lore in awhile, but last I knew they were completely invulnerable to all forms of damage outside of a Halo due to the precursors' mastery of neural physics I think is what it was.
English
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The dreadnought's super weapon is described as being like an oversoul's death impulse which could be considered similar to halo's effect , so it could be possible for it to destroy precursor tech but at a far shorter range.
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Halos actually kill off the concept of life in their radius by negating the neural physics that allow neurologically complex entities to exist.
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That's not like the halo rings. They work by killing the brains making the species vegatables
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They actually kill off the concept of life in their radius by negating the neural physics that allow neurologically complex entities to exist.