If you play Call of Duty for the campaigns, you might be disappointed, but if you're like pretty much everyone else and play everything else the smash-hit franchise has to offer, it might be a fun distraction. However, if you're totally new, it's probably not worth your time just for this.
How Long Does It Take To Complete? The main story of Call of Duty: Modern Warfare 3 lasts around five hours, according to HowLongToBeat. However, you have to be solely focused on the story or just really good to beat it in that time. If you go for some of the achievements as well, then it will take around seven hours.