I was watching this cool movie recently and I though of pretty cool idea for unturned 4.0. One of heavier and less common police vehicles could be this big armored truck which could look kinda like this
Maybe the rear of the truck could open and have like armory, having a truck full of ARs to deliever to your boys out in the field could be pretty cool, obviously you would have to guard it pretty good to prevent others getting access to it and stealing your guns and shooting you.
Armored vehicles like this are pretty much confirmed and the armory could work aswell, or you could just put storage in the back and it would be the same thing.