Another Halo: The Master Chief Collection test takes place this week

[Windows Central]

Halo 3 is being tested this time around.
A few months ago, 343 Industries promised to fix Halo: The Master Chief and upgrade it for Xbox One X. In an effort to uncover the problems users were facing and get feedback, the team launched an insider program that gave certain Xbox One owners the chance to try out the latest build of the game.

Full story from the WindowsCentral blog...