The Douglas County Range is on the East side of 395. Heading South on 395, you'll see a stoplight at the 7-11. Turning Right(Westerly) will take you to the Golf course and the Ranchos. Turn left at the light and follow the paved road as far as you can, past the fairgrounds, past the animal shelter, into the sanitation transfer station, you 'll see the info and envelopes for range use.
And as far as where I work, there is always a standing invitation to ARFCOMmers to swing into Hamdog's at the Meadowdale center (on South 395, before you get to the light going to the range, convenient!). I am there Sunday, Tuesday, Wednesday, and Thursday 2-10pm, and Monday morning for breakfast 7am-2pm. The place is open 24 hours, so don't let my absence stop you. I have been known to buy beer and sodas for visitors...