campaign mission

Players can participate in beta tests for Call of Duty: Modern Warfare 4 before its official release in October. - Early Access Beta starts on August 21 for pre-order customers. - Open Beta begins on August 28 for all players. - Pre-order customers may need a beta code, depending on their purchase method. - Codes will be available during the Call of Duty: Next Showcase on August 21 at 9 am PDT. - Most maps and modes will be available during both beta weekends, with some exclusives. - Pre-loading for the open beta starts on August 26 at 9 am PDT. Players who participated in the early access beta will not need to download the game again but may receive updates.