War of the Rings type Map

I'm doing a new map using the World of Middle Earth 6 terrain(for now) and it's going to have a unique style of gameplay with lots of custom spells and stuff.
At the beginning, it'll be sort of like an AoS, you choose what hero you are (Umbar, Shelob, Mouth of Sauron, etc) and you gain control of the legion over witch the hero reigns.
Have a few ideas so far and want any criticism or ideas from people here. Credit will be given for ideas used.