The Haihead must upgrade the Cyberkernel with an expansion to allow them to access the entire Foehn arsenal.
To expand their network of influence beyond the Last Bastion's area, the Foehn Revolt aims to construct more Cyberkernels around the world. These structures are their intel collection hubs, communication centers and supercomputers in one, making them an important target for Foehn's enemies. In addition to enabling some of the advanced technology, the Cyberkernel provides access to the radar and the scouting support power in the form of Recon Sortie, which summons two drones that will reveal the shroud in a straight line of their flight.
Other than granting access to various Foehn support units and grids, the Cyberkernel provides the following support power to benefit its role as a radar structure:
2 Recon Drones are deployed to reveal undiscovered terrain and potential enemy activity within their base. Unlike the Spy Plane, these drones perform their reconnaissance in a cross pattern, and they reveal shroud the moment they enter the battlefield. This support power costs nothing but takes 4:00 to recharge.
Due to its multiple and significant roles, the Cyberkernel is vulnerable to infiltration and/or oncoming attacks especially if it is undefended, so a Foehn commander should place walls and defenses around it. This is more important for a Haihead commander once they have a Cyberkernel Expansion as they will lose a myriad of their access to their high technology as well as the aforementioned attributes of the Cyberkernel once it is destroyed. The same goes for the Nanofiber Loom and Cloud Piercer, as lacking even one of these important structures mean that the Foehn commander won't be able to construct their respective expansions from their subfactions.