What about games like Battlefield? Custom loadouts, killcams, perks (specializations, like ammo, sprint, etc.), join-in progress, no skill-based rank, weapon unlocks through progression, sprinting, no friendly fire, starts even with unbalanced teams, etc. are you going to tell me that Battlefield copied CoD as well?
Also, are you seriously going to tell me that a game that has sprinting copied Call of Duty? Better watch out, Mario, the feds are coming for ya! CoD has copied things from halo in the past as well, like theatre, the currency system (CoD points copied credits from Reach) Survival (copied Firefight, and Zombies was much better anyway), Infected, etc. Also, overkill didn't exist until Black Ops 2 and that came out AFTER Halo 4, so technically, CoD copied that from Halo. You're just a blind Bungie fanboy who thinks everything they did was absolutely perfect and can't stand the fact that another company is making the games, so you blindly hate on the company and their games.