Moments ago Helios stated the following:

[in regards to the map editor] I have an inkling it was said somewhere previously that it is essentially the same tool that the designers are using to create the missions in the game.

We’ve got plenty more info releases regarding the PC mission editor planned for the future, so I’m confident most of your questions will be answered before the game is out.

He also responded to a members question regarding the editor.

So that means we have the tools to create missions as good as or perhaps even better than the ones that are already installed on the game.

Wow now that is a very appealing feature. I wonder if it will be possible for the community to create and share missions with each other? What I mean is say Helios for example created a cool mission could he upload the mission to the internet so that others could download and play that same mission?

If you’ve got the time and the ability then I’m sure it’s a possibility, we do have some very good level/mission designers working on the game of course though.

We’ve also got some exciting plans lined up regarding how the community will be able to share and distribute all the user created content.