Easter Egg I Found on Infinity (Campaign)

Games Other Halo
1

I have never heard anyone talk about this easter egg, so I thought I would shed some light on it, and see if anyone else has seen this while playing through campaign.

This happened about 2 months back, so I might be a little iffy. When I was playing Infinity on legendary, I got to the part of either the first or second encounter of seeing the forerunners and the covenent working together.
(Once again this is awhile ago, so I might be a little iffy on what part it is, so click this video link [HERE] if it doesn’t automatically go to the 8:31, just scrub through until you are at 8:31, and that will be the part of the mission I am talking about.)

Since I am a coward, through that part, all I did was hug the walls and trying to be stealth, But when I was doing that I found this little easter egg. As I believe it was on a piece of metal on the wall, or possibly on the wall itself, I found this giant emblem on the wall, the emblem was the Prime emblem (the emblem you get if you buy the legendary edition)
[IF YOU DO NOT KNOW WHAT THE EMBLEM LOOKS LIKE, CLICK THIS]

I was wondering if anyone else has seen this emblem either on that mission or somewhere else in campaign.

2

I might be in the mammoth too