The Corporate HQ is a stock ship in PF:E, it has a Lathe, 2 Cannons, and 3 Lasers. The Corporate HQ is the only stock ship to use Reactors. The Corporate HQ is prebuilt on every mission, and losing Corporate HQ doesn't end the mission. (Unless the setting "Fail mission on HQ loss" is ticked in the mission editor.) If you lose Corporate HQ it will make an emergency jump into Rift Space to protect the crew, while in Rift Space all Energy production systems will go offline and there will be no Energy supply for ships. After losing Corporate HQ you need to wait 20 seconds before Corporate HQ can jump out of Rift Space again.