With Black Ops 7 on the horizon, I'm doubtful if Treyarch will be able to top the last best Call of Duty from 2015, which still holds up to this day.

Black Ops 7 Zombies will surely take after BO6, but there’s a case to be made for it borrowing from Zombies’ most hated iteration.

Call of Duty's popularity exceeds Battlefield's, but there have been times when the latter series has outgunned the former in its weapon designs.