calling cards

Calling cards in Call of Duty are cosmetic rewards tied to specific in-game achievements, with Dark Ops calling cards being a hidden category that does not appear in challenge lists until unlocked. Recent discussion on WindowsForum covers the discovery of two confirmed Dark Ops calling cards in the Black Ops 7 beta, continuing Treyarch's tradition of secret objectives that reward persistence and skill. The thread explores how these hidden calling cards are designed to surprise players and add replay value, with details on the specific objectives required to unlock them before the full game launch.