Halo 3 Insider testing is now live on PC through Steam and Microsoft Store June 12, 2020 by admin Tweet A new Insider test flight has been kicked off by 343 Industries, this time pushing out a slice of Halo 3 for selected players to test and give feedback on. This flight will be running for a week. Read more… Neowin Related Posts:Halo Infinite Campaign co-op test is now available…Another Halo: MCC Insider test now live with an…Halo: MCC Insider test brings Combat Evolved visual…Halo Infinite's first Insider test is now live,…Halo Infinite's first multiplayer flight starts on…