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# Races are more diversified - there can't be the same unit types, but with different names.
If you played more, you'd realize that's really false. The most obvious difference lies in the teir 2 tactical missile launchers, but there are differences up and down the line. Most of those differences are stat rather than role driven, but even there you get differences. For example, an Aeon artillery barrage is fairly accurate where a cybran artillery barrage does massive damage to a wide area... if you can hit the broad side of a barn. Aeon's 'anti-group' weaponry is it's PD (which has a relativly wide area of effect) as a result, while artilery does massive damage, while Cybran's rely on pin-point accuracy with their PD, with their artillery taking on the anti-group role.
You also get the high-end units, where one might hvae a tactical missile defense, another has shields, and another can reclaim / repair. And, the most incredibly obvious item, the Cybran have a heavy stealth outlook rather than shields (lack of mobile shields, but have mobile stealth; no T3 shield facility; T2 shields are distinctly inferior in a number of ways to other races).
The differences are not negligable... they only look that way.