Steam keys for the tech preview are being sent out as we speak. “Since we are inviting a lot of Halo Insiders, it may take some time for your invite to arrive via email and Waypoint.” John Junyszek states on twitter. SO make sure to keep an eye on both your halo waypoint messages AND your email. Including your spam and promotion folders. Other than that be patient!
source: https://twitter.com/Unyshek/status/1441217017449570309?s=19
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