Basicks has a trio of new releases with ammo boxes, atomic barrels and skulls.
From the releases:
If zombies weren’t scary enought then why not skeletons? Six heads of bone warriors are waiting for you.
There are some supplies without which on battlefield you are nothing. Ammo is one of them.
In the good times they were used to store fuel. Now, as they are emptied you can use them on your battlefield.