Karna had specially spent the last entire week of the preparation time before the war to retrofit the Dragonhead flamthrowers and the Dragon screech device in the walls of Purplehaze city.
They were concealed using thick metal plates colored exactly as the walls on the outside , and fitted where the holes of the archer tower were made.
The effective range of the Dragonhead flamethrower was only 30 meters , hence they needed the attacking forces to absolutely swarm to the walls before unleashing them for maximum damage.
However the Dragon screech device had no such restrictions. Effective for a range of 400 meters , it could stun incoming enemies and instill within them a dragons fear debuff.
Hence Rudra waited patiently for the attacking forces to close in , currently the frontline was near the 200 meter mark , whereas the backline was back at the 800 meter mark with most of the troops being concentrated at the 600 meter mark away from the walls .