While Call of Duty: Modern Warfare 3 may have been the lowest-rated entry in franchise history, and its initial sales were reportedly 38% lower than its predecessor, the Call of Duty franchise isn't going to start slowing down anytime soon. Though sales for Call of Duty: Modern Warfare 3 might have been lower than past entries, that's still a hefty sum in Activision's pocket, and with Microsoft now at the helm, there's even more pressure than ever for the next few entries to return the franchise to its former glory.