So basically one day a friend mentioned to me that we should make a capture the flag game on our server. This struck me as an awesome idea and I kept thinking of new ways to make this a legitimate game that you could play in Minecraft. After a week or so I came up with this...

Capture the Obsidian!

Object of the game:
    To win you must have a member of your team grab the obsidian placed on the map,
    bring it back to your team's base, and place it on your stage.

Process of Winning:
    Over the course of the match you will need to build up the tools necessary
    to break down the obsidian block. To start you will farm the trees placed
    at your base. When a Wooden Pickaxe is created, you are able to farm the stone
    blocks placed around the map. When a Stone Pickaxe is made, you will be able to
    farm the various Iron ore blocks around the map. After an Iron Pickaxe is made,
    you can then farm the Diamond ore. After the Diamond Pickaxe is made, your goal
    is to get to the obsidian and bring it back to your stage and set it.

Rules:
    -You may not attack other players at the spawn point during first spawn.
    -If an item required to complete the match is destroyed, the match is a draw.
        If proven intentional, then the team that destroyed the item loses.
    -No duplicating. (Hurry and fix this Notch...)
    -No moving the furnace.
    -No leaving the boundaries of the map. (not that it would do you any good)
    -Teams should wear a Red or Blue skin to reflect their team.

Along with these rules and ideas, I made a simple map so that I could test it with some friends.
Here is the download link:  CtO v1.3

Game basics and suggestions are in the .zip in the readme. Pretty much you just copy
the files every time you start a new game, that way you can reset the map every match.

So... good idea or did I waste two days on making this stuff up?