"bad guys" or "Bad Guys"? That is the question. I don't see any problem with running an Imperial campaign. Sure, the Empire are the "bad guys" of Star Wars, but they are not all evil. The game is slanted towards having the Empire be the opposition, but this could be overcome by any group willing to do a bit of work. I would love to see an Empire Sourcebook, possibly including guidelines for playing as Imperials, or at least further detailing the opposition.
Playing "Bad Guys" on the other hand means playing drug dealers, serial murderers, terrorists, rapists, sociopaths, psychopaths, child molesters, etc. Why would anyone want to play them? And who would want to play with them? Seriously. I don't think such a campaign would be enjoyable or long lasting. At least not for mature players.
I like pulling out this whenever I see " good guys and bad guys "...
From what we've seen of Age of Rebellion just about everything you may need mechanically to play a (basic) Imperial campaign is there. While there's definitely room for some sort of Imperial supplement it seems to mainly be for roleplaying guidelines, how to tweak bits like Duty for Imperial players, maybe some additional gear or gear rules (such as every stormtrooper's helmet having a MFTAS and all the intricacies of stormtrooper armor -- as opposed to it merely being laminate armor in EotE, but I find this least necessary due to the sheer depth already found in EotE and AoR), but most importantly what I'd want to see and what would most justify an Imperial supplement to me: plot hooks .
As for your take on bad guys... it's not that far off from the WEG stance on the Empire and assorted fringer criminals...
Edited by Chortles