Game of throne's Hardhome Battle as a war3 mod Thread

How do you guys think the battle of hardhome from s05e08 of Game of Thrones would play as a warcraft 3 mod?

I picture essentially a coop multiplayer game that would mix the tower defense game style with hero siege with a twist. Each player would assume control of a hero (Jon Snow, Tormund, the giant, and so on), each one with its own play style and abilities. The beggining of the game could play as a tower defense game, the main objective being to delay the army of the dead for as long as possible. After the gates are breached, each player assumes control of his own hero directly, going into the hero siege part of the battle. The objective could be stop the impending doom on escaping wildlings until a fixed quota is met. After that phase I imagine each hero having his "single phase", during which a series of individual challenges would play, during which other players do nothing or help only indirectly, for example giving well timed buffs without which the main goal could not be achieved. Tormund's phase could pit him alone against several undead generals. The giant's phase could be about activating his powers at the best possible time, due to it's slower nature having to be compensated by well timed power activation. Jon Snow's phase could pit him against the white walker, first running from it, them fighting it when he manages to get his sword. If any of the players fails in it's single phase, the game is over. After that, the game could change into hero siege mode again, this time the objective being to secure a route of escape to the boats.

Man that scene could provide for a hell of a good game!

Haha i like the idea actually, would like to play a map like Hero Siege in this setting.

Dont forget to use Arthas as that leader at the end Not Kel'Thuzad!!