You probably won't find too much on here about Nevada, unfortunately. I think most of our players are from Oregon and southern Washington.
I did a quick Google search for nevada airsoft and found what looks to be a pretty good site, they seem to have several events right in Reno.
http://nvairsoft.com/index.php?option=c ... d&Itemid=3
Also, don't worry too much about the woodland BDU's. Nevada as a rule might not be the lushest place on the planet, but I do know that Tahoe is pretty close to Reno, and I know that Tahoe is one of the greener places I have been (I used to spend about a tenth of the year there). If you do find that you need desert camo, you might be able to trade an almost new pair of woodlands for a used pair of deserts or ACU.