-Bring back the Halo 3 style skill ranking system.
-Bring back the Halo Reach style XP armour progression (With All Armour in the game.)
-Scrap the battle pass and just keep your micro-transactions to the store. (You can keep armour and weapon skins here.)
-Bring back classic colour customization for free. (You can even just keep it to basic colours so your paid skins still stand out.)
And if you’re going to force the battle pass on everyone, you should allow for a small amount of credits be awarded each time someone reaches a new level as they work their way through the XP progression. Those hard earned credits should be able to buy individual items from the battlepass/store or the battlepass itself if they grind hard enough. As they progress levels get harder to achieve and less credits are earned. In the end you still win monetarily, but the community isn’t alienated if they don’t like or have the means to spend on the battle pass that week/month/season.
This is a good compromise many would accept, in my opinion.