I'm not sure for the pitt, or point lookout but for broken steel you do.
At Play.com 14.99 For A Double Expansion Pack (EXAMPLE: Fallout 3 Broken Steel And Point Lookout)
yes.
Broken Steel is a DLC expansion pack, yes. If you don't have the DLC, then you don't have any of the Broken Steel content.
you need the pet expansion pack
New Vegas is not an expansion pack for Fallout 3 or part of the game! Fallout: New Vegas and Fallout 3 are separate games. As for "how to get there", you can purchase it almost anywhere retail video-games are sold.
It is not an expansion pack for Fallout 3! Fallout: New Vegas and Fallout 3 are separate titles. As for how to acquire it, you can purchase it almost anywhere retail video-games are sold.
Yes,you nead fallout3 the game to play operation anchorage
no, the ocarina of time does not need the expansion pack.
no, you do not need your Sims 3 disk, but you will need the disk for the expansion pack you want to install.
you get it on Late Night expansion pack
No you can't, you need the disk of the expansion pack to play the game.
Yes when brought from a shop, all you do is put the disc in, install the content then play the content using the original fallout 3 disc.