as an insider if you wanna attend tournaments and compete are you able too even if you are part of the insider program?
I didn’t see any rules that ban competing in tournaments. I think you’re fine.
If you mean trying to join a tournament using an Insider build of the game, that won’t work. Like the game literally wouldn’t let you.
If you’re wondering if your void from tournaments because you’re a Halo Insider, you’re not. You can still join them however you like, as long as you’re using an up-to-date release build of the game.
The insider is its own separate game. Its not like a computer/phone os where you are using your device with a beta build. Just use the regular non insider game n youll have no problem competing in tournaments.
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> I didn’t see any rules that ban competing in tournaments. I think you’re fine.
thankyou 
As Nebby said, test builds are generally a separate executable/program from the main game and there shouldn’t be any way that you can join a tournament with the test build.