WHAT’S NEW?
This patch adds the first stage of the Custom Games Browser to Halo: The Master Chief Collection on all platforms, for a scale test. What does this mean? Here’s some inforomation on the Support site:
This patch adds a test-ready version of the Custom Game Browser (CGB) to Halo: The Master Chief Collection. It will be enabled for a limited time to stress test the CGB and prepare for a full launch. For this test, only Halo: Reach will be playable.
The test is planned to go live at 10:00 AM PST on April 29th.
More information: https://support.halowaypoint.com/hc/en-us/articles/360060430971-Halo-The-Master-Chief-Collection-MCC-Patch-Notes-April-2021-CGB-Scale-Test-