4. **400 Gundabad Bats (400 are left). Since they have flight they close the distance far quicker than the land forces. Their goal is to primarily focus on the inner layers past the first wall into the center of the castle. Disrupting coordination and movement from anyone tasked with defense of Casterly Rock while the number one priority is the location of the Night King.
5. Bolg and his Guldur Orcs--Bolg leads **50,000 Guldur Orcs out of the north towards the weakened part of the fire towards the forces and to occupy another front to this major battle. **50 Wargs (0 left), **20 Orc Beserkers (0 left), **15 trolls and Olog-hai (0 left), and ** 6 Ogres (0 left. Their goal is to cut through whatever (1,000) stands in their way to also attack Casterly Rock. Reinforcements and an utterly enormous force.
**300 Gundabad bats(leaving 100 more) are also with them and take flight with this force and seek to overwhelm any siege type weapons present at the time of their arrival. They also attack anything with the ability to fly at the time of their arrival.
6. **5 Great Eagles (5 are left)--are deployed from the mountain. They like the Gundabad bats are focusing on the center area of Casterly Rock looking for the Night King and to attack any pivotal leaders they find from a higher elevation.
7. Smaug--also comes down from the mountain with his superior speed the moment the Night King is spotted. He is signaled by the war horns of Azog. When the Night King is discovered Smaug will come down to converge on him.
**4 Great Eagles (leaving 1 remaining on the Mountain stronghold) are deployed to accompany Smaug in case the GoT three dragons are deployed. Their purpose is to attack the dragons heads and those riding them.
Conclusion: Casterly Rock and your insistence to have all your vital pieces in one position make this a no brainer. The war will be decided here. Once the Night King perishes you lose your ability to raise the dead and the majority of your forces with one dead dragon as the dessert. One death is that pivotal to this war. You also have all your dragons present with the mother of dragons here. She's not used to an opponent attacking from the sky. Level playing field.