Battlefield V's latest trailer focuses on the Company, which is the player's personal collection of soldiers, vehicles, and weapons. You can pick whichever ones you want to bring into battle, and outfit them both for their roles and your own play style. The more you play, the more progress you make, which means that you can better outfit and strengthen your Company.
You can learn more details at the Battlefield blog, or you can check out the trailer below and call it a day.