The game looks gorgeous on Xbox One X.
Today, Digital Foundry released an analysis of Call of Duty: Black Ops 4's "Blackout" battle royale beta. According to the outlet, the game targets native 4K resolution at 60 FPS through dynamic scaling on Xbox One X. Since it's a beta, the resolution at any given time is lower, so hopefully there will be significant improvements by the time the game ships.
Full story from the WindowsCentral blog...