Placeable destructible objects to be placed anywhere on your map, can be broken into pieces at your will. They work just as the default crushable rocks on the base game maps.
Crushable Rocks (large)
Output: ROCKS
Capacity: 5200L
Price: $1
Crushable Rocks (extra large)
Output: ROCKS
Capacity: 9000L
Price: $1
Use any jackhammer capable of crushing rocks on the base game maps to destroy these objects.