"Activision's only major shooter franchise is Call of Duty, while Electronic Arts has Battlefield and Titanfall."

Don't forget Destiny on the Activision side. Titanfall and Destiny are both post-2013 launches.

@Shantmaster_K For Neversoft's Guitar Hero run, I count six games in five years -- GH5 and GH Metallica shared a year, and that was the single exception. Where do you get 7 in 3?