The Forerunner bonus reactor is a Forerunner structure in Halo Wars. It increases the tech level of any player who stations infantry within it by 1. The Forerunner Bonus Reactor itself cannot be destroyed but the infantry inside can be. Once taken it gives protection to those inside like a Deployable lookout tower.
They are reactors built and used by the Forerunners in their ground-based attacks. In some battles, they had time to retreat and detonate them. On occasion they were overwhelmed by the Flood and were not able to destroy them.
- Halo Wars (First appearance)