i cannot answer all of this but Fallout wiki can! search Fallout wiki on Google... all your fallout needs plus lots of nuka cola, mmm im going there now...
Yes it does and as a gamer i think all of you fallout fans including myself will finally have more fun as you adventure the entire DLC's including new locations, missions, weapons, and legendary creatures hope your ready
Gun Runner's Arsenal.
Yes, you can use weapons from Fallout New Vegas DLCs in the base game.
go to games for windows find the fallout 3 dlc buy it and you will have it
Downloadable Content for Fallout 3 for PS3Yes, there is downloadable content for Fallout 3 for PS3. Check in the PlayStation store online.
not 100% sure on this one, but i think you the fallout 3 website has dlc for pc.
DLC is coming to PS3 it is arriving late June and all of the other DLCs will arrive after Operation Anchorage including Point lookout and Mothership Zeta
The DLC in Fallout New Vegas allows you to do more missions, which means yes, it keeps you playing.
First you have to have the Operation: Anchorage DLC for fallout 3. then you have to complete the simulation in-game. Then the sword should be in the armory at the end of the DLC as a reward.
No obsidion said they would not release dlc that extends gameplay past the ending
From the xbox live marketplace
Get your money back.