From Press Release:
Today we have the Call of Duty: Modern Warfare II PC trailer to share. Modern Warfare II will be available on PC via Battle.net and Steam on October 28 and features 4K graphics, Ultrawide support, RICOCHET Anti-Cheat and more than 500 PC customization options.
Team up with TF141 a week early with Campaign Early Access, available with Modern Warfare II digital pre-orders. Pre-order here: https://www.callofduty.com/
For details on other pre-order bonuses, check out the Call of Duty blog: https://www.callofduty.com/