In fact, the majority of players have been forced to do so since the servers have struggled following release. If you just want to play the campaign for Call of Duty: Modern Warfare, you can do so without an internet connection, provided you have the game installed.
To help those folks out, we’re here to answer the common question, does Call of Duty: Modern Warfare require an internet connection? Does Call of Duty: Modern Warfare require internet? © Activision Multiplayer might be at the heart of each CoD instalment, but there are plenty of players just looking for the campaign as well. Most notably, the game lists a broadband connection as a requirement to play. Are you pumped for Call of Duty: Modern Warfare? Locked and loaded for the return of Captain Price? We certainly are, but for those unfortunate souls who live in areas with less stable internet connections, there are reasons to pause before picking it up.