Apart from running the biggest shop downtown, he is also the head of the Stockmen's Association. He is a stocky fellow with a constantly flushed face and shock of thin blond hair and walks with a slight limp, a friendly demeanor and an offer for those willing to work hard in brahmin driving business. Additionally, he has an illegal side venture, a casino organized in the back of his shop, right under the nose of the NCR police force (across the street from the station).
Complete brahmin drive: The Chosen One must have completed at least one caravan escort in order to gain access to the casino. After doing so, they should ask if there are any faster ways of earning money there. Duppo will give the password to the door in return.