The exposed reactor core
The Strogg Reactor is a powerful energy production device located within the heart of the Strogg power plant. It provides the energy for a number of Strogg facilities in and around the capital city of Cerberon.
The reactor core is heavily defended and invincible to direct weapon attacks.
Destruction
During the War against the Strogg, Bitterman managed to destroy the Reactor by first cutting off its coolant supply, causing overheating, and then disabling the power plant's toxic waste disposal system, which led to corrosive toxic waste flooding the facility. Bitterman arrived just in time to see the Reactor core explode.