Dont use SW games to prove your point about Empire loyalty. SW games should never be a source for how the SW universe really is.
besides, the empoer was holding the Empire together with his Sith powers of influnace. that is why the Empire lost the battle. once the Empoer was distracted, the Imperials paniced.
If you want to try and make the Edor missions correct to the movies, then you are in a big job of editing. There had to be some sacrifices.
I never complained about there not being enuf fighters during the First DS missions in the First X-wing game. I knew that the game engine couldn't handle it, and applauded the designers for creating a mission that was fun to play.
Dont epext SW games to fully immerse you in the way the moives were. It jsut cant happen. at least not yet