Base drones

Resources are transported from the producers to the storages and from the storages to an upgrading building by little drones

Additional facts

These drones can be found on bases and deposits, they run away if the enemies are close to them.
They collect oil drums from the oil pumps they collect metal from the metal factory.
You can adjust on settings "Play base drone movement sounds" which you can activate or deactivate.
Drones collect scrap metals from the rusty vehicles around your base.
May be collecting thorium in thorium deposits.
Can detect stealth units.