In Halo 3, Halo 3: ODST, and Halo: Reach, the Warthog's tires are printed with the word PUMA. This is a reference to an episode of Red vs Blue in which Simmons
Halo Infinite easter eggs: The best secrets from Halo Infinite's campaign | PC Gamer
Steam Community :: Guide :: Halo 3: Easter Eggs
Halo Infinite's Best Easter Eggs Locations
Fun Red vs Blue easter egg from the Halo Infinite stream today : r/roosterteeth
Halo Infinite easter eggs: The best secrets from Halo Infinite's campaign | PC Gamer
Halo Infinite easter egg locations – all the secrets discoveries » Amazfeed
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RvB easter egg in halo infinite😀 : r/halo
One of Halo Infinites many cut vehicles was actually talked about in one of the inside infinite articles from a while back. Credit to Alpha Archive for the image on the right. :