(Wowo answered in the meantime, so some of this may sound funny.)
Oh, then please also include the easier version of the Empire (Slightly Poor Empire) too, for senior l4m0rs like myself. It’s definitely an easier and therefore less frustrating entry level for weaker players who don’t want to hack the code.
Also, RadMans recent level "Grand Illusion" should be included, IMHO, after he’s had time to tweak a few things. It’s given me ca. 1.5 hrs of excitement.
BTW, I wouldn’t say that the original levels are too easy. I’d rather say that they lead and train the player so that later on they can play harder levels. I for one was never bored by the campaign, DMM, and Skirmish Arenas.