Is Call of Duty Modern Warfare 3 Steam Deck compatible? Loading up on the brand-new addition to the Call of Duty lineup won't be a straightforward process on the Steam Deck, as Call of Duty Modern Warfare 3 requires you to add Windows 11 to your Valve handheld arsenal. Equipping your Steam Deck with the Windows operating system will involve a series of elaborate steps, but once complete, you can get to taking down your enemies on the go in no-time.
The Call of Duty Modern Warfare 3 system requirements demand a colossal 149GB worth of install space before you can take on the solo campaign, or blast your way through online matches with friends and strangers alike. Picking up one of the best microSD cards for Steam Deck will ensure you have enough storage space at your disposal, especially if you're equipped with the 64GB model of the PC gaming handheld.
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