Black Ops 4 lets you see the content you unlock per level in one screen
A new feature in Call of Duty: Black Ops 4 MP lets players see their progress and unlocks in a cleaner way, allowing users to know what you’re unlocking at which level — and can help make a better decision as to what to use a permanent unlock token on.
This new menu is available in MP by going to Menu -> Barracks -> Progress and Unlocks. In this menu, you are able to use L2 and R2 to navigate between all of the levels per prestige and see what you will unlock as you progress forward. It even tells you additional information on each items if you hover over it on the right side.
The progress bar shows your XP and level required to prestige, which is 55 levels. There’s 10 total prestiges in Call of Duty: Black Ops 4.