The Desecrated Stronghold serves as the Headquarters of the Chaos Space Marines in Dawn of War. Heretics and Cultists are trained here as well as researching technologies that increases the Population Limit for both Squads and Vehicles. Upgrading the Desecrated Stronghold to a Desecrated Fortress and then to a Unholy Monastery unlocks the ability to manufacture vehicles, train more and better infantry, as well as more advanced research in other Chaos buildings. Constructing a Stronghold costs 700 Requisition and 150 Power. However, unlike most buildings, cost scales by 250 more Requisition and 150 Power as more are built after the 2nd one is built. For example, constructing it the 3rd time requires 950 Requisition and 300 Power while constructing it the 4th time requires 1200 Requisition and 450 Power with the 5th and final time costing 1450 Requisition and 600 Power. Unlike the Space MarineStronghold, If any Desecrated Strongholds are destroyed, the player will have to research the add-on upgrades again at a different Stronghold in order to retain the tech tree. Although it is the most expensive structure, each Stronghold generates a +20 Requisition rate which never decays over time. The building features 7500 Hit Points and like all artificial constructs, it has no Morale.
Increases the number of infantry squads you can have by increasing your Squad Cap up to 15 slots. This can be researched again but after that, the player will need to research the the Desecrated Fortress (HQ Add-on) before increasing the Squad Cap up to 20 slots. Each subsequent research requires an additional price of +25 Requisition until 150 requisition is reached.
Vehicle Cap Increase
125
Increases the number of vehicles you can have by increasing your Vehicle Cap up to 5 slots. This can be researched up to 3 more times after researching the Monastery (HQ Add-on) but for an additional price of +25 Requisition. Each research provides +5 Vehicle Cap but resources does not scale upon subsequent research after the initial +25 Requisition increase.
Desecrated Fortress (HQ Add-on)
250100
Upgrades the Desecrated Stronghold to a Desecrated Fortress. This is available once both the Chaos Temple and the Chaos Armory are built.
Unholy Monastery (HQ Add-on)
400150
Upgrades the Desecrated Fortress to an Unholy Monastery. The Unholy Monastery allows the production of the most advanced units, buildings, and abilities available to the Forces of Chaos. This is available once both the Machine Pit is built.
150
100