right here's what you do:
1. get a gun. doesn't need to be anything flashy, a 9mm will do.
2. put the barrel to the chosen location on your head (i think to the side looks more gangsta-ish)
3. pull the trigger
4. you'll fall into a very very VERY long sleep, and wake up in a huge world where you can make as many addons and maps as you can
5. ???
6. (as they say) PROFIT.