That's what happens when you try to shoehorn things into games. Galactic Battlegrounds still holds the record, though: It wanted to include the Gungans, disregarding that the Gungans' military strength was not nearly that of any other side in the game, from the Rebels to the Empire. They also had no air units whatsoever. No problem, though - the developers had them ride birds. Yes, birds. Huge reptiles from which they threw energy balls at enemy fighters and ground units. And these birds were on par combat-wise with TIE Fighters and X-Wings. They could even fly about in space, with neither creature nor rider sporting space suits.
I think Rebel Strike comes in second when it felt like including Hoth for the third time, this time having you mow down half of the Imperial ground forces, including three AT-ATs, singlehandedly - from astride a tauntaun.
Look, both games were pretty good, but those examples still stand.
"One of the bitches actually gave birth while she was attacking, and her puppies joined in on the carnage."
--the awesomeness that is Boatmurdered.