Battlefield and Call of Duty Crossover

We can seamlessly integrate the universes of Call of Duty and Battlefield games. This fusion focuses primarily on the single-player narratives of mainline games, with notable exceptions like "United Offensive" and a nod to "MW3: Defiance." While we do acknowledge Warzone, it doesn't dominate our timelines. Additionally, our emphasis is on Battlefield games that feature campaign modes. However, titles such as "Battlefield 1943" and "Battlefield Bad Company 2: Vietnam" are omitted, as they lack solo or offline single-player modes against bots. Furthermore, we are not considering Zombies or Extinction lore canon in this crossover.