Sorry to say, but it looks EXACTLY like it to me.Let's hope it's not. I'll get in touch with the owner of the account to see if he actually used the official assets.
This is what 343i released after the game launched - they released HI RES pictures, and that pattern looks exactly like they just used these assets and would be making money out of it.
They screwed up at the neck though, they copied the same thing too many times.
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