I don't know about rumble but I'd love a new infection game type. I never thought of the Hive in general as a race of parasites, however with Oryx's taken abilities I can now see it being an excuse to have this gametype in the crucible.
English
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in the book of sorrows the hive are the product of a krill like race infected with a parasite (flood reference much?)
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So basically the Hive are freaky space shrimps, like how the Fallen are freaky space spiders? Jeeeeze, as if there wasn't enough freaky fun facts to know about the things we slaughter.
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Something about Oryx (originally a female) meeting the Worms and starting a war, which caused the original Hive species, which was more civilized, to collapse.