Seven studios helped develop Call of Duty: Modern Warfare 3 - Xfire

According to the game's Steam page, Sledgehammer Games, Treyarch, Infinity Ward, and four other studios helped with the upcoming installment.

Would MW3 ever launch the maps from the original COD4 MW (2007)? : r/ModernWarfareIII

Call of Duty Guides - Modern Warfare III Multiplayer Map Guide — Shoot House

Call of Duty: Modern Warfare II Season 05 — Punta Mar Map Intel

Here's the first trailer for Call of Duty: Infinite Warfare

Battlefield 2042 review: A good time that only gets better with friends

Xbox Game Studios, OT9

Captain John Price Call of Duty Mobile 01 by michaelxgamingph on DeviantArt

Six Days in Fallujah: This video game is an 'Arab murder simulator,' critics say

First person shooter

Call of Duty: Online is dead. Long live Call of Duty: Online! — Deconstructor of Fun