I'd love Coronia to be a unit.
SKY GUARDIAN CORONIA
Cost: $ 5000
Speed: 5
Hitpoints: 2500 (like an MCV)
Armor Class: Heavy Aircraft
Prerequisite: Cloud Piercer + Expansion + Coronia Launch Bay
Purpose: Unit Production, Knightfall Beacon
Weapons: Sonic Emitters (4x), Pressurized Battery (4x) Tempest Beacon
GAMEPLAY:
An enormous floating fortress rivalling that of the Irkalla. This is the mobile headquarters of the Wings of Coronia and their last trump card. This massive airship is a huge windspin engine, constantly manipulating the winds allowing it reach seemingly illogical speeds. Any units with Windspin engines receive a speed boost near the Coronia and any Foehn air units will benefit as well.
Equipped with one of the two largest nanofabrication plants (the other located in the Last Bastion), the Coronia also acts a war factory, allowing the Wings to construct fleets of Pteranodons, Alanqas, Quetzals, and Buzzards in the midst of a battle. When a Coronia is on the battlefield, Harbingers can be built as their own separate units ($3000 each). Finally, the Coronia is the source of Knightfall drops, so Foehn commanders can instantly deploy infantry near the Coronia.
The Coronia can defend itself from air with its mounted sonic emitters and destroy any tank battalions with its several pressurized batteries. In truly desperate times, the Coronia can send its windspin engines into overdrive, creating a massive tempest that dwarfs the Alanqa's hurricane. This tempest easily throws tanks, aircraft, and infantry alike into their doom. Be advised though, this tempest can endanger Foehn units as well.