The xualang assult rifle

The finger thing does not give you that much good karma ..... You can go into the vaults and look for a violin case in a recording studio (sorry I forgot which vault it was< somthing about "white noise"(experiment in 1 of the vaults that went horibly wrong) )and then bring it to rivit city and give it too abraham washington ( agatha's song finished) does not give you a pistol As far as I know....... But you could always go to her house.... Somewhere in the middle area of the map... sorry I can't be more helpfull

The Blackhawk you get from Agatha for getting the Music Sheet which is found inside a stall behind a toilet inside the Men's Bathroom inside of Vault 92. For good Karma you can simply give Purified Water to the people outside of nearly every large settlement. These "beggers" can be found outside of Megaton, Tenpenny Tower, and Rivet City. You can also donate Caps to the Church of Atom, or the one in Rivet City. For the Xuanlong Assault Rifle, simply go to the Museum of Technology, and activate one of the terminals near the entrance. Select option #000, and a letter will appear on the screen from Prime to Jiggs. He talks of the "usual" breadcrumb trail. Exit and reuse the terminal to select option #001, and then go through the Museum searching for other terminals with number entries. To sucessfully go through the breadcrumb trail you must look at the names. . . PRIME. . . The number you must select is the one that is prime at each terminal. After finding them all, you get another letter, and a key to a safe inside a Supply Closet or something inside the Museum. The letter will tell you where to meet Prime. At a diner across from some metro. . . Don't remember name. . . Go there and you'll find Prime's dead body. Search it and he will have the Xuanlong Assault Rifle on him. Good luck! And sorry if I was too late!!