The War Sanctum, a powerful and feared structure that is the upgrade from the Hospital, and having some powerful units at its disposal.
The War Sanctum allows the production of Meditecs for ground support, Angels for air support, the Saint for air domination, and the Sphinx for battlefield control and airspace shutdown.
The Saint is a self regenerating Air unit that is fast, missile resistant, has long range and deadly air-to-air weaponry. This unit is often desired and rushed for as soon as you can in the early to mid-game where it is most effective.
The Sphinx, this one unit has the highest health in the game and features Composite Armor, it absorbs powerful attacks like nothing but weak to small arms fire like Infantry. This units anti-air weaponry is superb, and will deny the airspace for the enemy. This one unit can be the ultimate frontline beast.