WW2 zombies perfected the operator system 7 years ago

for those who aren’t aware in WW2 zombies we had a cast of characters like we did through BO4 with the exception that you could choose which of these characters you would play as instead of it being completely random on spawn. on top of this you had characters who could be unlocked through unique challenges. I believe that this system was basically perfect and with BO6 could be an amazing feature especially if we could use our multiplayer operator skins in addition to our set crew. furthermore if challenges similar to WW2s existed and we could unlock new operators for both multiplayer and zombies and maybe even the ability to unlock the set crew as operators for multiplayer use if we do a certain challenge or something on their respective map(s).