https://www.gamespot.com/articles/state-of-decay-2-free-update-and-first-dlc-pack-ou/1100-6460087/

Following a successful debut month, Microsoft has released the first DLC pack for its Xbox One/PC zombie survival game, State of Decay 2. The Independence Pack is available to purchase now and gives players access to an assortment of "patriotic" items and gear, including vehicles, weapons, and more.

Those who purchase the Independence Pack will receive three Independence Day-themed vehicles: the Pyrohawk, Burninator, and the Meatwagon. Additionally, players will get a trio of melee weapons (The Freedom Ringer, Grillmeister, and BBQ Fork) and two long-range weapons (Pyro Launcher and Starshank Launcher). You can see some of the DLC items in the brief trailer below.