Covenant air artillery

The Covenant Air Artillery was a Covenant unit cut from Halo Wars.

Description
Recently sighted behind several front line battles, it seems that the Covenant have developed an air based artillery unit. With no on board defenses, it can be very vulnerable if dealt with promptly. However, its heavy plasma mortar cannons can lay waste to an entire UNSC base quickly and it is therefore critical that we gain more field information on this vehicle.