Treyarch have released a gameplay trailer, as promised, for Zombies, a fan-favorite mode returning in this year’s iteration of Call of Duty game. It’s called “Don’t Miss the Zombie Bus.”

“Collect the right pieces as you make your way through Tranzit and you might have a chance to put them to good use. Shotguns are classic, and rifles are powerful, but neither can compare with the cover offered by the ZOMBIE SHIELD!”

During the week, Treyarch dropped hints, “deliveries” from the Zombie bus, leading up to this trailer, finally revealing how each of the items in the deliveries are used in Zombies. Take a look!