Dreadwing is the Decepticon Aerial Warrior. He isn't particularly smart, which makes people wonder where he got the technology that allows him to teleport. He obviously didn't invent it himself, and no one else on either side of the war has the ability, so all signs point toward him having stolen it.
It was also known for the Decepticon Military Units as Decepticon Air Enforcers an army of identical drones, all bearing his design, and all controlled by an Air Commander Starscream. This gives him a lot of pull with the Decepticon Seekers, due to the sheer number of Soldiers he can call in.