DID SOMEONE SAY GOOD QUEST MODS????
here are my all time favorites as a long time fan and CONSUMER of mods
WE'RE TALKING AUTUMN LEAVES, BEST VOICE ACTING IN ANY MOD SO FAR, GREAT STORY, MYSTERY, DONT SPOIL IT FOR YOURSELF
https://www.nexusmods.com/newvegas/mods/50146
WE'RE TALKING BOOM TO THE MOON my personal favorite of all time quest mod that's solid all the way through, mod maker's a friend of mine so don't take my word for it, play it.
https://www.nexusmods.com/newvegas/mods/58488
there's also the New Vegas Bounties which are great all throughout, in fact all of this guys stuff is pretty solid, if you've got an account on Nexusmods I'd recommend you check out the someguyseries anyway since you'll need the someguyseries esm to run bounties. He makes some of the best independent quest mods on New Vegas, probably the best.
NVB1
https://www.nexusmods.com/newvegas/mods/37310
NVB2 - read what I put later in the post on installing
https://www.nexusmods.com/newvegas/mods/41184
there's a NVB3 but I'm pretty sure it's got seperate installation instructions that might crash you if you don't do properly same as number two
https://www.nexusmods.com/newvegas/mods/55744
Keep in mind to install these one at a time by the way, so finish the first one first, and then make sure to look at the description of the second one so you're not messing your game up. Then do the same with the third one when you've finished the second one.
I'd also recommend Fallout Mod Manager if you want to keep everything organized.
https://www.nexusmods.com/newvegas/mods/36901