Editing Forerunner secondary reactor

{{Status|Canon}}
[[File:HW-Forerunner Reactor.jpg|thumb|An inactive Forerunner secondary reactor on Harvest.]]
The '''Forerunner secondary reactors''', sometimes referred to as '''bonus reactors''', are [[Forerunner]] [[generator]]s. They are characterised by their circular structures with four pylons pointing upwards to its "chimney". Each reactor features a walkway outlining the building's edge. The hollowed center emits a bright bluish-purple light when the reactor is in use. These reactors have been found on [[Harvest]], [[Arcadia]], on the surface of the [[shield world]] [[Trove]], and within its interior.<ref>'''Halo Wars'''</ref>

==History==
The Forerunner secondary reactors 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.<ref>'''[[Halo Wars: Official Strategy Guide]]'''</ref> 

By [[2531]], when [[United Nations Space Command|UNSC]] forces from {{UNSCShip|Spirit of Fire}} explored the surface of Etran Harborage, at least two of these reactors remained intact and operational despite the Flood's domination over the shield world's surface. UNSC forces were able to reactivate these reactors, which provided similar level of power generation as [[UNSC reactor|their UNSC counterparts]].<ref>'''Halo Wars''', campaign level ''[[Shield World (level)|Shield World]]''</ref>

[[File:BonusReactor.png|thumb|An active secondary reactor on the Flood-infested surface of Etran Harborage.]]
==Gameplay==
The Forerunner secondary reactor is a building found in ''Halo Wars'' [[campaign]] and [[multiplayer]]. It increases the tech level of any player that stations an infantry unit within it, allowing players to bypass the need to construct the [[UNSC reactor]]s or [[Covenant temple]].

Two secondary reactors could be found in the campaign level ''[[Shield World (level)|Shield World]]''. The building is much more common in Skirmish maps, typically defended by [[unidentified insurrectionist group|rebels]], the Flood, or [[Aggressor Sentinel]]s. Units garrisoned in the structure receive the same defensive bonus as they would in a [[deployable lookout tower]]. Although the building itself cannot be destroyed, the infantry inside can be killed, allowing the structure and its benefit to be contested between players.

==Gallery==
<gallery>
File:HW Screenshots Leipzig 1.jpg|A battle occurring near a secondary reactor on [[Frozen Valley]].
File:HW2 ForerunnerReactor Concept.jpg|An unused kitbash concept of the reactor for ''[[Halo Wars 2]]''.
</gallery>

==List of appearances==
*''[[Halo Wars]]'' {{1st}}

==Sources==
{{Ref/Sources}}

{{Forerunner}}
{{HW buildings}}
[[Category:Forerunner buildings]]