Go to the Minefield then head north if you keep going you'll eventually pick up a radio signal from the alien space craft when you find it there is a space craft and special gun with limited ammo.
If you come upon a Brahmin anywhere in the wasteland (a Brahmin, not a pack Brahmin) you can crouch and hit the interact button to tip the Brahmin over.
When creating a character, tag the Speech skill. After exiting Vault 101 and reaching level 2, put all your skill points in Speech. This will allow you to easily exploit the glitch. Go to BigTown, located just east of Arefu. You may need to go to Megaton and speak to Lucy West to obtain the Arefu marker if it is your first run through. Talk to everyone in BigTown, leaving Pappy for last. He has a "Speech" option that remains for the duration of the game. Every success you get using the "Speech" option will net you 6 experience points. Multiple successes will stack, leading to larger point gains. There is no need to wait for fear of losing experience points. Just continue to use the "Speech" option until you level. You must stop talking to him to distribute points. Save the game after leveling up each time, as the game has a tendency to glitch which cause the loss of all your progress.
Play until to the point where you meet Fawkes. After he is freed and gives you the G.E.C.K, leave and do the Raven Rock quest. When you see Fawkes outside, tell him to be your follower then proceed to the Citadel and talk to Star Paladin Cross. When she says "I have something to ask you", respond with the second answer. She will say you have a wry wit like your father and ask to join you. Say that you would be honored and she will automatically join you. You now have both Fawkes and Star Paladin Cross as your followers.
Complete the following tasks to unlock PlayStation3 trophy rewards.
When you acquire the Chinese Stealth Armor, equip it then select up to four hats (for example, Eulogy's Hat, Winterized Power Helmet, Shady Hat, and Ledoux's Hockey Mask). When you have the desired hats you can equip any armor desired. Do not unequip the hats or you will have to do the stealth armor trick again.