https://www.theverge.com/circuitbreaker/2017/10/6/16435326/xbox-one-x-master-chief-hidden-inside-easter-egg

Microsoft has hidden a tiny Easter egg inside the Xbox One X that most owners are unlikely to find: an etching of Halo’s Master Chief riding on top of a scorpion.

The image is nice homage both to the character that helped propel the Xbox to success and to the One X’s code name, Project Scorpio. It’s also a nice play on words, since the tanks that Master Chief occasionally rides in Halo are known as Scorpions.