Such buildings are: bio-domes, huts and infested supply depots, barracks, bars, armories, missile turrets, bunkers, engineering bays, factories, command centers, refineries and starports. In the Co-op Missions the infested tech lab and armory was introduced. The infested colonist compound is a new structure. Infested terran buildings do not regenerate, nor do they burn when brought to low health. They do not require creep. When destroyed, most produce a small number of broodlings. In Nova Covert Ops, the zerg possess functioning infested missile turrets and infested bunkers.