So no, I don't see the fire nation having any sort of chance even with the comet. But the library where he could find that info is destroyed/in the spirit world and whatever the earth bending spirits are, they didn't trade their immortality like the moon and ocean spirits did. The only hope the fire nation would have is if shady zhao found a way to stop earth bending lol. The fire nation's warships and forces are basically all gone in seconds. Kuvira took out Republic City's fleet in seconds with that thing. Even with the comet, theres nothing ozai or his men can do to the platinum colossus! Literally not a single way to stop its spirit energy blasts. Chains were the downfall of even an amped azula.
![empire earth vs rise of nations empire earth vs rise of nations](https://i.ytimg.com/vi/dWwqBrUHTAo/maxresdefault.jpg)
Comet or no, you can't bend with bound hands.
#EMPIRE EARTH VS RISE OF NATIONS HOW TO#
AND give them 3 months prep WITH a mind like Varrik? AND characters like Bolin who have abilities never before seen in the original series (aka even with a comet, no firebender knows how to or even can counter lava bending)? AND an army trained at a craft never before seen by the likes of Ozai or his nation (aka metalbending as the norm)? As Tektonik mentioned, Toph literally just coated herself in a metal door and even that basic ass crap meant the firebenders could do nothing to her even with the comet amping them.
![empire earth vs rise of nations empire earth vs rise of nations](https://static1.thegamerimages.com/wordpress/wp-content/uploads/2021/04/Rise-of-Nations-looks-a-lot-like-Age-of-Empires-building-a-city-and-reseraching-new-technologies.jpg)
Kuviras army has mech tanks as standard gear. In ATLA, a hot air balloon was revolutionary. They have access to genius minds from the literal future.