Really! Was there much as of gameplay, like how many hours were left out????? And will these MODs corrupt my saves?
I have to look up what BlackIsle left out specifically due to the release deadline.
It were certain characters, quests (finding Sulik's sister for example) and maps like EPA, Primitive Tribe home of Sulik (near Great Salt Water), The Abbey, etc.
Most of it is described in this link:
http://falloutmods.wikia.com/wiki/Killap%27s_Fallout_2_Restoration_Project
Or
This walkthrough *** Contains Spoilers!!! ***
http://numerometria.com/F2RP_WT.htm
But like I said it differs between FO2RP versions. The older restoration project was closer to the original content while the latest has a undergone a few changes. For example: in the original content there was a mad scientist in the Environmental Protection Agency (EPA) while in the latest version he was left out because Killap thought it was a bit silly I presume. Whatever...
And they made a couple of NPC changes like female children, NPC's show the armor they're wearing, you can choose a long haired dude as a character and much more. Just install it to check it all out.
As for your save games: No they will not work, you'll have to start over from a fresh installation. Although you can back'm up so you can keep your saves for when you want to play FO2 Vanilla again. They are located in the fallout2 DATA folder (copy/past all slots for later use). It doesn't matter however my advice is: start over to fully enjoy the FO2RP content.
Oh, all patches are included btw so no need to install a dozen different patches like the High res patch etcetera and you'll get Timeslip's useful in-game tweak (sfall) that improves the game mechanics: You can speed up time by pressing Ctrl + 1,2,3,4,5 or 6 and locate items on the ground by pressing left shift for example. And if you really want to tweak the game check out the ddraw.ini file.
Well I'm leaving San Fransisco to resume my quest for the Holy G.E.C.K. my people are starving.