Thats my idea, whatcha think?
It's simple and straightforward. Then again, it's basic enough where it could evolve, and become grand. One thing I noticed is how trying to make a very strict or linear RP tends to die off quickly, as there isn't anywhere for the player to write things interesting, or plot developing. So something that's more open ended, such as your idea, can lead to a more interesting and engaging RP. Now, that could be a requirement for a new RP idea.
-A more freely RP.
However, it can't be too open, or else it's just like cramming a bunch of merging fanfics that all happen to be different. This kind of happened in several RPs where people would split into different groups. And since the only goal for these groups was to kill each other, it didn't end well. (As a heads up, i'm not trying to think of any names.)
The RP would have to make sure all players are active in the same group, mainly focusing on one main goal. Of course, each character has a different reason, or possibly a smaller goal within that, but as long as all of the characters aren't trying to kill each other, it will remain strong.
As for the Alien Invasion idea, I would have to say it sounds silly, but then again, it's fallout. Trying to be too serious in Fallout leads to things breaking down. Hell, I always wanted to do an RP based on the original Enclave mission; to start humanity all over again on a new planet.
But, it's good we are discussing what to do. It will help piece everything together, and make something that can last. Or at least be enjoyable for everyone. :tops: