I’ve got a lot of experience with Halo 3, I’d love to help give any necessary feedback I could find, and I have a PC that supports high frame rates and high resolutions (1440p at 155 Hz). I updated my Insider info last night to reflect the upgrades to my PC and I wonder if this affected it.
Not too late to join OP 
Make sure you’re signed up and opted in to PC flighting and upload your DxDiag (how to do this is explained when you’re filling out the form). There’s another wave of invites coming out before the flight ends so there’s always a chance you get to take part.
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> I’ve got a lot of experience with Halo 3, I’d love to help give any necessary feedback I could find, and I have a PC that supports high frame rates and high resolutions (1440p at 155 Hz). I updated my Insider info last night to reflect the upgrades to my PC and I wonder if this affected it.
Only 343i knows the exact parameters that are looked for in the testing candidates. I’m on a 4K 144hz display with 1080 Ti SLI, so maybe that’s what they like with me? I’ve also been in a large number of previous flights and have been playing halo since 2002. We will never know exactly how the process goes. Hopefully you make it in with the second wave to try out H3. It is pretty flawless I must say. I can not find many bugs this time around. It looks and plays great!