It may have taken me a while to admit it – and I certainly pushed back for a time, but I worry I am getting too old for Call of Duty. Not the series as a whole; I find a lot of entertainment in the ooh-rah campaigns, and I am especially fond of the gameplay and engine evolutions of some of Activision’s post-Modern Warfare 2019 efforts. I dabble in Zombies here and there, and I’m happy to play whatever supplementary…