A livestream is underway on Twitch where Infinity Ward is discussing the ongoing beta testing of Call of Duty: Modern Warfare. PC players will be able to join in on the testing on Thursday if they've preordered the game and the Windows beta will be open to all starting Saturday, so this is a chance to hear what to expect. For more, there's also a post on the Activision Games Blog on the crossplay beta and post release plans. Word is that sweet Sony cash will keep their PS4 favoritism firmly in place:

Following the launch of Modern Warfare next month, the team has worked to ensure that content will be released in a way that enables all players to continue to seamlessly play together. Most Post-launch gameplay content, including new multiplayer maps, new multiplayer modes, special ops missions and more will release simultaneously across all platforms. We look forward to further detailing how post-launch content plans will operate prior to Modern Warfare’s launch on October 25th.

In addition, Call of Duty is excited to continue its partnership with PlayStation, including last weekend’s PS4 debut of the Modern Warfare Open Beta as well as the recent PS4 exclusive 2v2 Alpha. But the best is yet to come. For the very first time in our partnership with PlayStation, PS4 players will have an exciting Day 1 advantage. More details on how Call of Duty will continue to support PlayStation as the best place to play Modern Warfare will be rolled out soon.