Let's see. Bigger star destroyers with more firepower. Would cause engine issues considering the diminishing scale that I've seen Corey mention in terms of ship size. Already a thing thanks to PA bring battlecruiser focused.
Terrible ship designs. A cosmetic issue but a big one. Even fighting the FO would make me revolt in disgust.
Ugly looking badly designed SSDs. A shame to the legacy of the Executor.
Improved TIE/LNs. We have Thrawn with his upgraded fighters followed by Peallon, the PA is in this mod, and Palpatine has both more LNs AND stronger ones too.
"Elite Infantry." Not really since in this mod Stormtroopers are actually competent. Thanks, Zahn.
Weak heroes who are even less powerful the Air Tripwrit or whoever commands "The Corrupter" in Era 1. The only unique thing the FO has going for them. Is a weakness. Makes sense.