There was a bunch of brand deals cosmetics done to promote Halo Infinite both way before and during Infinites launch. The issue is that many of these weren’t accessible outside of the US/Canada and anyone who wants them have to deal with insane scalper prices online.
Some noticeable examples
Micro Action weapon charm (master chief mega construx figure) - Only obtainable if you bought an expensive energy sword set that wasn’t really available outside US/Canada
Zeta Sky coating - Only available to those who preordered a physical xbox copy meaning PC users got screwed over.
All the Rockstar energy drink cosmetics - Once again not available in many countries
There’s many more and you get my point. They are currently unavailable and only making scalpers profit so why not throw them on the store as bundles?