Where is the alien in fallout 3

The Alien Spaceship along with one of the best weapons in the game, the alien blaster and a few ammunition with it is north-west of the nuclear disposal site, once you see a house with lots of radiation around it go to that house and if your radio is turned on you will get a Allen radio signal, carry on until you see a wonky Antenna sticking out of the ground. The alien space ship, the alien blaster and a few rounds of ammunition has crash landed near the wonky antenna and the house imitating radiation