I saw a theory that the UNSC Infinity exploded and caused the damage seen on the Halo ring during the E3 2019 trailer, but I don't think that's the case. In Combat Evolved, the Pillar of Autumn's reactors going critical caused an explosion that completely destroyed the ring; yet in Infinite, only a small section of the Halo is missing. What do you think caused it? I'm honestly not sure.
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What do you think caused the Halo ring explosion?