Calling Cards

Calling Cards are the equivalent of Playercard Backgrounds that appear in Call of Duty: Black Ops. Unlike in Call of Duty: Black Ops where the backgrounds needed to be purchased with CODPoints, calling cards are earned by completing challenges in a similar style to Call of Duty: Modern Warfare 2 and Call of Duty: Modern Warfare 3. There are a total of 323 calling cards in the game.

Unused
These are in the game files, but are currently unused

Trivia

 * In game the "Defender" calling cards (46-49 under Game Modes) do not state the game mode they must be earned in.
 * Despite their descriptions, the "Primary Mastery", "Secondary Mastery" and "Weapons Mastery" calling cards do not require Mastery on each weapon, as only Expert on each weapon (except Peacekeeper) will suffice.
 * Moreover, the "Weapons Mastery" calling card's description states Diamond Camouflage for Combat Knife is unlocked by completing Mastery for every weapon, while it is actually earned by completing all camouflage challenges for all Special weapons.
 * Under Prestige Calling Cards, the character featured in Perk 1 Greed is green, and the character in Perk 2 Greed is blue. Upon looking at the perks in both tiers, their colors should be reversed assuming they are colored that way to represent the perks.