https://wccftech.com/black-ops-cold-war-pc-trailer-250gb-of-space-required-to-play-at-ultra-settings-ray-tracing/

With Call of Duty Black Ops Cold War PC now very close to its scheduled November 13th release date, Activision has shared detailed system specifications, from the minimum ones all the way to play at Ultra settings with Ray Tracing (available for both shadows and ambient occlusion) enabled.

The interesting bit is that while you'll need a minimum hard drive space of 175GB at launch to play all game modes (keeping multiplayer only will require a much lower 50GB, thankfully), this requirement goes up to 250GB for the Ultra settings spec, likely because of higher-resolution textures.