The release of Call of Duty: Modern Warfare II is just around the corner as we rapidly approach its October 28 launch date on PC. In partnership with Infinity Ward, Call of Duty PC lead developer Beenox shares some of the highlights coming to the PC version of the game. Ranking Call of Duty PC games in order of file size in 2021 #1 - Call of Duty. Image via Wikipedia. Size: 1.4 GB (Source: Steam) #7 - Call of Duty: Modern Warfare 3. Image via Wallpaper Cave Sledgehammer Games has pushed out Call of Duty: Modern Warfare 3 update 1.34 and this hefty download is to bring in the Season 1 content for the game, as well as Warzone! Read on for what’s new this December 5 in the patch notes and outline of new content. Call of Duty: Modern Warfare 3 Update 1.34 Patch Notes: Size: 36GB (PS5) VR9A.