Player Built Housing/Villages:

Yes, destructible and Build-able. Make saluaging a HUGE part of Fallout Online. I mean it makes sense. let us Terraform in some spots also so we can build underground villages form caves or whatever too. it would be awesome!

Open World FFA PvP with PvP Consent

A lot of us want to be able to kill each other in such a harsh world like Fallout Online so it makes sense...however in order to not lose the carebears.. let's allow a PvP with consent so no one cries and leaves because they keep getting PWNED. Also make huge consequences among players and NPCs when someone PKs a lot for the sake of crime. People that get attacked for no reason by PKers can PK without becoming a criminal (YES use Karma points here, I guess)

Gear Craft/No Gear Grind

Let's make it simple here guys. Don't do that whole crap about end game gear grind.. EVERYONE HATES IT. Make it simple and easy for us. Again crafting should be a huge part.

Skill Based Not Level Based PLEASE

This makes total sense ALAS Fallout 3 and Fallout New Vegas.. except add more skills that will be viable to the MMO. Let us steal from anyone with a high enough pickpocket skill level even players unless they have PvP Consent OFF.

Make the world huge and dynamic!

Every expansion should unveil more parts of the United States, but make each part of the U.S. huge.

Player Based Economy

Take notes from EVE Online but in the Fallout Series

Let us hire Mercenaries

To hire as guards to protect our player built villages when we're offline. There should be a skill for this under leadership skills. Under the leadership skills you're able to hire high level guards to protect your village.

Get all factions from FO1, FO2, FT,F3, and FNV and let us join them

It would be awesome to build clans based on these factions as well as our own.

Let us play as mutants or humans

Would be awesome!

Let us pick being what we want to be

Whether we want to be sales people pushing Caravans for money, assassins, sheriffs, crafters, etc. Let us control what we want to do. Let us be good evil neutral and let us be hired as mercenaries for other player caravans. Let me be a lot like Eve in that sense!

If anyone else wants to add more please add below. I think it would be great to read this from people that already want to play your game.

Take everything out about F3/Fnv, and we don't need to see a manifesto now.