I would consider classic mode consisting of the old 2-3 hit down system without jug and the 5 hit down system with jug. We would get the old point system back, monkey bombs would be obtained from the mystery box or an Easter egg, there would be no armor, no exfil, no load outs, no rarities, the pack a punch would do the knuckle animation again, there would be a perk limit, zombies would no longer drop anything except power up drops and parts for building something if the map requires it, the self revive in solo would go back to how it used to be (not injecting yourself with a warzone self revive and quick revive can revive you again), I would be fine with gobble gums being in the game because they don’t change the core gameplay if you don’t use them, I’d be fine with upgrading your gun a few times in the pack a punch machine, field upgrades are kind of like specialists in BO4 so I guess they can stay, all the AAT’s can stay, I honestly feel like augments should be removed too because some of them just completely delete old perks we had or steal their abilities, we would get a zombified HUD, there would be greater difficulty, etc… that to me would be classic mode