Cobalt Cave

Cobalt Cave, housed in an island, was home to a Leasath weapons facility. The facility developed an advanced weapon for the Fenrir. Called the HPM (High Powered Microwave), it was comprised of a plasma ball that tracked targets. Once it acquired a target, it emitted microwave pulses that ignited an aircrafts fuel tank, ripping it apart. But it had a weakness. It could not track targets moving faster than 600mph. The facility also housed satellite dishes to aid the guidance systems. A giant cave on one side of the island contained a lab and control room.

Leasath-Aurelia War (Op. -- )
Sources

Ace Combat X: Skies of Deception (the game)