https://www.polygon.com/2018/5/23/17384692/battlefield-5-new-multiplayer-modes-explained

Battlefield 5 is a return to World War II, but developer EA DICE isn’t interested in making its next game a throwback. Instead, the team has created two brand-new modes to supplement its signature lineup of large-scale battles.

Here’s everything you need to know about Combined Arms and Grand Operations.