Carrying on the tradition from Call of Duty: Modern Warfare 2, Modern Warfare 3 has a bundle of unlockable titles and emblems that make up your Callsign. You can unlock titles and emblems by completing various tasks throughout Call of Duty: Modern Warfare 3, as you can see below, you can earn titles or emblems for certain achievements within the game. If your trying to collect them all, good luck, it’s no easy task.
Here is the complete guide to unlocking all titles and emblems in Call of Duty: Modern Warfare 3.