https://wccftech.com/modern-warfare-2-beta-lands-in-mid-august-according-to-amazon/

The Call of Duty: Modern Warfare 2 beta should land around mid-August, according to Amazon. The product page of the game says:

Pre-Order Call of Duty: Modern Warfare 2 for any platform by August 15th, 2022 to unlock early access to the Call of Duty: Modern Warfare 2 Beta. Must be shipped and sold by Amazon. Codes will be sent on August 15th.