There's an early mockup around here somewhere that has the wraiths territory (dead and spooky) up against magnar (burning lands) up against urxen (desert) up,against tarth (magical swampy).
we had to choose between unit customization or that.
Oh dear god why didn't you just give us Faction oriented units we could upgrade? They could have still had customizable perks. The races would have felt more unique and diverse in a lot of ways if they all had their own units instead.
Next time you play a game, COD or HALO make a note of how uniform the environment of a map is.
I will if I ever play games like that. I tend to prefer games like New Vegas if I want to shoot stuff, maybe Tribes Ascend and that's only because Tribes 2 will never be redone (my nerd rage about Tribes Ascend doesn't belong here), rail shooters are an anathema to everything I play for and casual death matches feel like a lobotomy.