Watch the Season 4 BlackCell Trailer for Call of Duty: Black Ops 7, the latest addition to the first-person action shooter franchise developed by Treyarch. Players will get a glimpse at what's in store for the Season 4 BlackCell offering with the Catalyst Collection, packed with Mastercraft rewards, 6 Weapon Camo Challenges, exclusive Skins, Blueprints, and more. The Season 4 BlackCell collection is available now for Call of Duty: Black Ops 7.