Here's what I suggest:

Make-a-Faction: Okay, read this if you want to understand: In the game, you have the choice to start a faction. If you have enough experience, or the right kind of money, you can start your own faction. Create the faction and post it online. You can join a faction at your command if you don't have one.

During this faction, you have the choice to team up with other players if you want to complete a difficult quest. If they say yes, you have an alliance with another faction. You can also declare "war" on other factions, which allow you to choose if you want to do a huge match battling one another. If one faction wins, all the XP travels through each member.

If you run out of ammunition, you can request x amount of ammunition types for team members (including yourself). If your supply for the faction runs low, you can also pay a fine (or give your ammunition to store for later) to request more.

Another thing is that you can start your own store / vendor company or caravan. You can sell weapons to players (and have weapons be given by players), and you can earn caps with all the income that comes in. I just don't give a...

I like this, But it is pretty much the exact idea of a clan or guild.

What about player made Factions would make it different from a clan or guild? Another drunk conquistador conquering the governor's ball...

Perhaps different guilds make up a faction? Otherwise it sounds just like a guild or clan.
|Lockon!|

This I like, especially if the entire economy is player-run.

Here's another suggestion regarding caps:

If you're low on caps and need some, you can do favors for a player. Say they need help on a certain quest. You do it with them, and you're earned money for your troubles.

Now that sounds like a good idea.

TF141Enclave wrote:Another thing is that you can start your own store / vendor company or caravan. You can sell weapons to players (and have weapons be given by players), and you can earn caps with all the income that comes in.

This I like, especially if the entire economy is player-run.

Now that I look back at it, it does sound like a good idea. I just don't give a...

Sounds like guilds/clans/whatevs in most games. But maybe i'm missing something.

How is this different?

Sounds like World of Warcraft to me.