Scenarios - Fixed or Random Maps?

Hey Gang,

I had always thought the scenarios in CivRev were randomized maps with some new rule tweaks thrown in (which is VERY COOL, IMHO).

And yet now I noticed that the "Ice Age" scenario seems fixed (I almost always start in the exact same location with maybe the barbarian camps randomized a bit). I also have to assume that these new MP maps are fixed (as a solo player I don't have any plan of verifying this on my own).