Reaching Prestige Master in Call of Duty: Black Ops 7 is but a step on the overall grind, but it does open up some new rewards and challenges. Here's what you get.

source https://www.windowscentral.com/gaming/call-of-duty/heres-what-happens-when-you-reach-prestige-master-in-black-ops-7-all-the-rewards-new-challenges-and-unlocks