At the very least they could take a page out of DICE's book. There's a new map being released in September that was created with the help of players actually participating in the design process, and patches undergo the same process. For customisation, I'd love to see the MGSV approach, where you can customise not only your appearance but your weapons and vehicles with different loadouts and camouflage.

Activision can't fire and hire new employees they are publishers they make the numbers for the dlcs like $20

Same with vehicles. I'd rather have them taken out of the game then in the sad vegetative state they're in now. But seriously how do we go from an industry titan in big team battle to this company that's scared of big maps. Ffs they made blood gulch, sidewinder, and sandtrap how do you lose that?