I've had a couple of days of fun playing the Wasteland mod, v1.2b. Took some getting used to playing in a desert/wasteland enviorment, but it worked out pretty good in the end.
Had one fort set up with overland brahmin farms and a pretty rural setup, and another more vault like setup sealed off from the rest of the world. Unfortunately as the noob I am I forgot to secure the scattered water sources in the beginning which lead to the slow starvation and ultimate doom of the entire complex as the poor suckers tried to get outfun.
One thing I pondered while I had my brahmin setup was that grazing would probably be a problem with the .25 grazing thingy. Unless there is some way to cultivate your own underground grass, or feed the brahmin from your farm fields (which could end up with it being better to only stick with basic farming stuff).
The amount of wildlife and wandering animals could probably be upped as far as I've seen. The level of raiders seem fine. Is there any worldgen sliders I could fiddle with that would increase the amount of wandering hostile animals?
Overall I still think the Fallout universe is a great setting for a Dwarf Fortress mod and that the mod is very fun to play in it's current form. Mind you I still have a lot to learn with both DF and the mod.