I thought his voice at the end was him reflecting on the humans kicking his butt during their war 100,000 years prior. I don't recall the exact wording, but I assumed this was that or perhaps the weird "second form" thing the Forerunners take on when they die (Bornstellar talks about this in the beginning of Cryptum).
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[quote][b]Posted by:[/b] Primo84 [quote][b]Posted by:[/b] switch 104 sv[/quote]I see what you're saying, but I think it can just as easily be applied to him having to answer to the first atrocity he committed with The Composer to the ancient humans captive on the Halo rings. Why that's relevant at the end of Halo 4, I have no idea, so I'm going to lean toward your explanation.[/quote] The first atrocity can't be attributed to the Composition of prehistoric humans on the Halo rings because it was to fight the Flood, not maintain their status.