Yes You Do.
There is no way unfortunately to start over in Fallout 3 with all you previous experience, this is one of the down sides of the game.
Your Dad kills himself taking down an Enclave officer, stopping the officer from getting valuable information about Project Purity
seeing that point is the end of the game nobody knows for sure.
you just have to get lots of experience
All of your followers will return to where you recruited them from (except for Fawkes & RL-3; RL-3 will go to Canterbury Commons and Fawkes will be outside Raven Rock when you exit).
Yes you get more experience the harder the difficultty
Just give them Med-X in their inventory and during battle they will use or just sleep
yes but only if you have dogmeat unless playing new addons and have puppies perk
bak to where you got them except for dogmeat he at vault 101
No it is only possible to have two followers (Dogmeat and another follower.) If you want advise, than you should go with Charon, hes killer with the combat shottie.
Occasionally Fallout: New Vegas will freeze, but not as frequently as Fallout 3.
fallout 3 psp??????