Warning: Spoilers ahead for Call of Duty: Modern Warfare 3’s campaign.Those interested in the Call of Duty: Modern Warfare 3 campaign can now play it through early access, and many have been quick to share their opinions on the series’ latest story mode. While reviews and social media posts about the singleplayer mode are largerly negative, citing Open Combat Missions as a disappointing step away from the bombastic campaigns fans know and love, Call of Duty: Modern Warfare 3’s story mode does offer a few good moments - including a cameo from a character named Yuri.